I need help as soon as possible thx

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

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?

Which of the following is equal to the rational expression when x is not equal to -2 or -6?