your having a pizza party you will need 6 oz of dough and 4 oz of sauce for each person at this party once you have the total count of guest you buy exactly the amount of all ingredients the dough and sauce that you buy weigh 130 oz all together how much dough and sauce did you buy

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?