A video game is on sale for $25. This is 45% of the original price. What was the original price of the video game. Give a explanation (i will be marking brainliest)

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?