Alocal discount store is famous for their motto, "shop with us and you'll pay 20% less". their claim is that every item in the store is already marked down 20% off of retail prices. in this sunday's ad, they are advertising a scuba mask and snorkel set at their discount price of $28. use a percent model to determine the original retail price of the scuba mask and snorkel set.

Original retail price: $35

Step-by-step explanation:

20% off means that the discounted price is equivalent to 80% (100% - 20%) of the retail price.  

Calling x the retail price of the scuba mask and snorkel set, then a discounted price of $28 means that this amount of money is 80% of x. Mathematically:

80*x/100 = $28

x = $28*100/80

x = $35

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