Astore sells a certain brand of jeans for $38. one day the store sold 6 pairs of jeans of that brand. how much money did the store make from selling the 6 pairs of jeans? me on this one and kind explain what i'm supposed to do.

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