Raymond and his friends have made a total profit of $390. Raymond and his friends sold: • 20 Bags of Popcorn • 100 Candy Bars. Unknown amount of Cookie Dough

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

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?

How are algebraic expressions evaluated using substitution?