A plant measured x inches tall last week and 8 inches tall this week. 1. Circle the expression that represents the number of inches the plant grew this week. Explain how you know.
◦ x - 8
◦ 8 - x
2. For the expression not chosen, describe a situation that the expression might represent.

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