Ajewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 57% markup. find the expression and the retail price if purchased for $45.

Step-by-step explanation:

Givens

, where

Therefore, the retail price is $70.65

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.