State whether each equation is true or false 2(4+5)=13

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?

1. 25pi ft^2 2. 5pi ft^2 3. 10pi ft^2 3. 20pi ft^2