Can i please get help

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.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Consider the image of klmn for the translation (x, y) → (x – 2, y – 1). what is the ordered pair of l′?