In a box of 36 pencils, 20 are sharpened. what is the ratio of sharpened pencils to unsharpened pencils?

I'm terrible at math any here is appreciated.

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)