What is the opposite of -18

1. 18
2. 81
3. 8
4. 80

Find |−5|. a. −5 b. 5 c. one-fifth d. –one-fifth !

This question awards 100 ! i really don’t want to fail i will also mark you !

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.