Please help me :( my mom is she doing my work tomorrow

What is the value of the expression below? (81^2)^1/8

Question 7 of 47 1 point what is the equation of a line with a slope of 1/2 that passes through the point, (-2,5)? o a. 1/2x+3 o b. y=1/2x+5 o c. y=x+5 o d. y=1/2x+6

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52