Perry bought 9 pairs of pant for a total of $510.Dress pants cost $90 and jeans cost $40 .how many of each type of pants did he buy

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then, the two had the same amount of money. how much money did each have originally?

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.

Factor this polynomial completely. x^2-8x+12