I've been looking in the study guide but can't find how to solve it

The answer is -1/16 or -0.0625, do you need to see work?

An exponent tells you to multiply the number by itself the number of times
Ex:4²=16,so the first fraction is = to 9/16

Hope this helps

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct