Karma baked 48 cookies yesterday. every hour, she bakes another batch of 12 cookies. what is the rate of change for the scenario described?

a.4
b.12
c.16
d.38

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.