Solve for m i need an answer am correct answer but be sure of your answer %100

Evaluate the given expression if m=45 |-3m|

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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.