Write a equivalent expression in rational exponent form

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =