Cooper bought a washing machine with a sticker price of $900. If he paid $12 a week for two years, what was the approximate markup rate on the washing
machine?
A. 27.9%
B. 38.7%
C. 69.3%
D. 72.1%

1 year = 52 weeks. 2 years would be 104 weeks.

$12 per week x 104 weeks = $1248 total.

1248 - 900 = $348

348 /900 = 0.3866 = 38.7%

The answer is B

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1