I will give Brainiest, The question is on the picture and it is geometry

What is the inverse of the function f(x) = 2x + 1?

Find the area of the regular hexagon if a side is 20 cm.

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)