Complete each statement with a number that makes the statement true. < 7°C

Do not include units (°C) in your answer.

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Select one:
15
8
4
10

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?