The total cost to rent a row boat is $14 times the number of hours the boat is used. write an equation to model this situation if c = total cost and h = number of hours.

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.