for a school fundraiser, elana will make pirate masks. she will order mask and print graphics on them. elana must spend 4.80 on each mask. if she buys 30 mask, what will be the total cost in dollars?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)