Answer:
It was answered correctly.
Step-by-step explanation:
Parenthesis means mutiplication so you can do iy rhat way or 4(c)^2=4×c^2.
{2, 4}
Intersection is the elements that two or more sets have in common. In A and B, they share {2, 4} in common.
Hm, it seems like his answer is off. The image is what I got.
32
