Iam trying to figure out what 8x=16 is

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

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

Can someone me and explain..will award brainlest!