You work for a carpet company. You sell carpets at these prices: 100 square feet for $67,200 square feet for $130,400 square feet for $240, and 800 square feet for $504. What is the approximate percentage difference of the best and worst carpet deals according to their unit costs?

A. 9%

B. 11%

C. 13%

D. 17%

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

6 cm

step-by-step explanation: