Algebra 2 5x3 + 10x

You have to rewrite the expression taking out the greatest common factor.

Ex..
3x+9 = 3•x + 3•3

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

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.