Astore had homemade sweaters for $20 off the original price. aunt ethel jumped at the bargain and bought a sweater for all 15 members of her family. if aunt ethel paid $375 for all the sweaters, what was the original price of each sweater?

but which class are u may know that first

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x