If f(x) =-3x+1 then f^-1(x)=___

(hurry! ) which expression is equivalent to the following complex fraction?

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how