Plz help answer this question ASAP

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

What is the y intercept of f(x)=(1/2)^x?

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)