Sam is a waiter at a local restaurant where he earns wages of $5 per hour. Sam figures that he also earns 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 E, his total earnings for the day?

a. E(n) = 3n

b. E(n) = 3n + 30

c. E(n) = 5n + 18
I'm confused... Please explain!!! :) Thank you so much!!! :)

Question

Sam is a waiter at a local restaurant where he earns wages of $5 per hour. Sam figures that he also earns 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 E, his total earnings for the day?

     a.  E(n) = 3n

       b.  E(n) = 3n + 30

       c.  E(n) = 5n + 18
I'm confused... Please explain!!! :) Thank you so much!!! :)