Does the given ordered pair, (-3,5/2) satisfies the given equation. 5x-2y=5 ?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.

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?