GARDENING A sprinkler waters a circular area that has a diameter of 10 feet. The
sprinkler is located 20 feet north of the house. If the house is located at the origin,
what is the equation for the circle of area that is watered?

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?