Total brain fart. a person standing at the top of a skyscraper would be approximately 0.39 mi high. use 3959 mi as the radius of the earth. how far out on the earth's horizon could this person be seen? 56 1 3088 or 39 miles.

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?