Does anybody know this? Can you also show how you got the answer? Thanks! :)
21 + 3 + (8 -2 +2)

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.