Joe buys an item for $8.16. He give the cashier a $50 bill. How mush money should joe get back?

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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.

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55