Evaluate the absolute values. 1.
| –7 |= -7
2. | 15 |= 15
3.| 0 |= 0
4. – | 5 |= -5
5. – | –3 |=3

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18