Can someone help me with this?

What is the shape of the height and weight distribution

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

How to find the exponential function y=ca^x, with points (1,2) and (2,1)