One number is ten more than twice the other. The difference of the number is 13. What are the numbers? Write the equations to solve.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Solutions for 2x+7 less than or equal to 3x-5

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.