Express the distance (d) traveled as a function of the number of hours (h) at an average speed. the morris family is traveling from providence to fredricksburg. given city traffic, they will average 45 miles per hour.

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.