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f Find the value of the expression 3x  [y  ( 7)], for x = 2 and y =  4. f

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f Ashley borrowed $7,300 from her uncle, to buy a car. She repaid him $6,000. How much does she still owe? f

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f Use the subtraction rule to find the difference.  1912  ( 6112) f

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f A bird is sitting on the top of a fence 5 ft above the ground. It flies to the top of a tree branch 10 ft above the ground. Find the change in elevation from the first point to the next. f

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f A whale is 384 ft below sea level. Five minutes later it was at a depth of 44 ft below the sea level. Select the correct description of the movement. f

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f What is the value of the expression,  60  ( 110)  45? f

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f What is the value of the expression?  54  ( 8) f

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f What is the value of the expression?  10  ( 10) + ( 10) f

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f An airplane was traveling from Houston to Albuquerque. After the plane reached a height of 2140 ft, it descended 268 ft. At what height was the plane after descending 268 ft? f

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f The weather report of the cities of Detroit and New Orleans showed that the coldest temperature recorded for Detroit was  4°C and that for New Orleans was  6°C. What is the difference between the two temperatures? f

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f The meteorological department reported that the lowest ever recorded temperature in Antarctic was  76°C and on the moon the lowest recorded temperature was  180°C. What is the difference between the two temperatures? f

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f What is the value of the expression?  9  ( 9) + ( 9) f

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f An airplane was traveling from Miami to Nashville. After the plane reached a height of 2110 ft, it descended 267 ft. At what height was the plane after descending 267 ft? f

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f What is the value of the expression,  24  85 + ( 35)? f

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f A bird is sitting on the top of a fence 2 ft above the ground. It flies to the top of a tree branch 7 ft above the ground. Find the change in elevation from the first point to the next. f

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f A whale is 228 ft below sea level. Five minutes later it was at a depth of 147 ft below the sea level. Select the correct description of the movement. f

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f Find the value of the expression 6x  [y  ( 13)], for x = 5 and y =  7. f

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f The weather report of the cities of Dallas and Orlando showed that the coldest temperature recorded for Dallas was  4°C and that for Orlando was  9°C. What is the difference between the two temperatures? f

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f Which of the following is not a term of the expression  15x  6y + 7? f

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f What is the value of the expression?  62  ( 2) f

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f What is the value of the expression,  40  ( 70)  25? f

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f Use the subtraction rule to find the difference.  158  ( 218) f

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