Find the surface area of a sphere with radius 10 in. leave your answer in terms of pi.

a. 400pi square inches
b. 4,000/3pi square inches
c. 100pi square inches
d. 500/3pi square inches

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

What term makes it inconsistent y=2x - 4 ?

How do you solve a question like this?