The number of sessions at a tanning salon are found by the expression 5x-28, where x is the cost per tanning session. The total amount of money made is found by multiplying the number of tanning sessions by the cost per session. If the salon made $2500 yesterday from tanning sessions, what is the equation that represent the how much did the shop charge per tanning session?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?