4. All of the following payroll taxes are expenses incurred by an employer except:
a. Social Security taxes.
c. federal unemployment taxes.
b. federal income taxes.
d. state unemployment taxes.

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

What is the total surface area of this square pyramid?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge