7. Parallelogram ABCD has a perimeter of 64, and the side AB has a length of 12. If it can be determined, what is the length of side BC ?
a. 20
b. 26
c. 32
d. 52
e. Cannot be determined by the information given

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.

First off , where's da graph ?