Find the simple interest on $8,000 at 4% interest for 2.5 years?

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.

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

What is the value of x? enter your answer in the box.