What is the algebraic expression for “6 less than m”?

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

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.

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?