Find the surface area of a sphere with the volume of 27π.

A factory in Hackensack manufactures T-shirts. The factory has monthly operating costs of $14,000 per month regardless of how many shirts are produced. Additionally, the factory must spend $7.45 for each shirt produced.

In July, the total factory costs were $19,000. Approximately how many shirts were produced?

Find an expression for C(n) where cost is a function of the number of shirts produced (n).

The factory charges $22.90 per shirt. Find a function for revenue in terms of n (number of shirts produced).

Find the number of shirts at which the company makes zero profit.

9xy+14x=15y-40+100x. Find an expression for y in terms of x.

Line s is perpendicular to line t and passes through (12,32). Find an equation to describe line s.