How much work is accomplished with a force of 250 in pushes about across the floor for this is a 50 m

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

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.