a group of penguins swan 4/5 mile in 1/3 hour . how many miles did the penguins swim in 1 hour ? how long did it take the penguins to swim 12 miles ?

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