Mrs. Lopez hired a tile company that charges $920 for a 40 hour work week. If Mrs. Lopez budgeted $2,300 to pay the tile company, how many hours can she hire them for?

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.

What is the radical expression that is equivalent to the expression 27 1 over 5?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.