How many girls are in the math club

What is 20+(5 x 2/5 )+ 3 show your work

If g^-1(x) is the inverse of g (x) which statement must be true

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.