I have eight coupons that are all worth -.25
The answer is A. After you square root both sides, you have to add 3 to both sides and then divide both sides by 4.
First find the amount of tax by multiplying 21 × 8.5%.
.085 × 21 = 1.785 = 1.79 (rounded)
Now add the tax back into the price...
21 + 1.79 = $22.79
They are parallelogram hopes that answer your question
