Increase is nothing but becoming greater or larger in amount, size, number or degree.
'To rise' also means 'to increase'.
When Beau joined the company, his salary was $6500. After one year, he got an increment and his salary became $7400. So, the increase in Beau's salary = $7400 - $6500 = $900.
Correct Answer: D
Step 1: The actual weight of Tommy was 40.3 pounds
Step 2: The weight increased to 54.6 pounds
Step 3: The weight Tommy gained = 54.6 - 40.3 = 14.3 pounds.
Step 4: So, Tommy gained 14.3 pounds.