What is the sum of the areas of circle C and circle D?
0
7 1 units?
7 cm
14 1 units
49 r units?
0
987 units?
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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?