For f(x) = 5x + 2: a) find f(7)b) find f-1(x)c) find f-1(7)d) find f(f-1(7))(i'm confused and no it's not multiple choice)

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is: