70-35 I believe that’s write
-2x • 3x = -6x2 (the 2 is an exponent)
4y • -7y = -28y2 (the 2 is an exponent)
-2x • -7y = 14xy
4y • 3x = 12xy
14xy + 12xy = 26xy
—> -6x2(expo) - 28y2(expo) + 26xy
Check the answer again just to be sure, it’s been a while since I’ve had algebra!
I cant see one of the numbers
its simple X is domain Y is range so the answer is
A
You can use the equation

to find the lenth of the legs
x = leg 1
x + 14 = leg 2