What’s 1+1? I can’t figure it out

Choose all answers that apply: a) ab and a’b’ are one the same line. b) quadrilaterals abcd and a’ b’ c’ d’ have the same perimeters. c) points a and a’ have the same coordinates. d) none of the above

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8