Find the sum or difference.10 11/12 + 7 1/4a. 3 8/12b. 3 2/3c. 17 1/4d. 18 1/6

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