Ben orders a cost of us tovorite macaroni and cheese. The case contains 18 same- size boxes that weight a totçi of 7.2 pounds. Which set of equations represents the weight in
pounds, of each box bí mocaroni and cheese, z?
18z = 7.2
2= 25
18z = 7.2
z=0,4
7.2 = 18
z=25
72z=18
= 0.4

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