Someone help please!! I can’t comment on anything. Like I see people comment on my answers and stuff but I can’t seem to respond. Please help and this is what I see while trying to comment if it helps.

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