Acustomer buys four products priced at $18, $22, $35 and $40 from the same store. the customer returns the most expensive product and gets a refund for that one product. how much money did the customer end up spending at that store?

8

step-by-step explanation:

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol