Vertical stretch by a factor of 3, reflection over the y-axis, down 5

Don't know how to find x given these segment lengths

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.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.