This is what I did not sure if it's right though
The answer is the surface area will be 440 square inches less.
Complimentary angles add up to 90 degrees and supplementary angles add up to 180 degrees...
Complementary angle = 90-52= 38°
Supplementary angle = 180-52= 128°
I'll do my best!
First step isolate the b. So for this one you want to subtract 4/7 from both sides. You end up with:
b=-3-4/7
or b=2.482571429or 17/7 in fraction form