Question

Each swing that Susan builds requires $10 in hardware and $20 in wood. She uses the expression 10 + 20 to represent the total cost of building one swing.
Which expression represents the total cost of building three swings?

A.
10 + (3 • 20)

B.
3 + (10 + 20)

C.
3 • (10 + 20)

D.
3 • 10 + 20

Answer 1

The answer is C. If the original equation is 10+20 for one swing, you multiply that by 3 to get the cost of three swings