What is the value of the expression below when n equals 5.4? n - 2.5 + 4.7n

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

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?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25