Sherry spent 4 hours exercising last week. if 5/6 of the time was spent jogging, how much time did she spend jogging? write your answer in simplest form.

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.