A particular style of sunglasses costs the retailer $90 per pair. At what price should the retailer mark them so he can sell them at a 10% discount off the original price and still make 40 % profit on his cost?

$126

Step-by-step explanation:

90 x 1.40 =  $126 = 40% profit of cost.

126 / 0.90 = $140 original price before 10%

= $126 discounted price

proof 140 x 0.10 = $14

140 - 14 = $126  the price wanted.

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168

multiply length by height. multiply the length by the height, and then double the product. work out 10 x 10 results = 100 square inches, then work out 100 x 2 = 200. the answer is 200 square inches.

step-by-step explanation: