The cost, C dollars, of hiring a taxi is given by the formula c= 2.00+ 3/20n, where n is the number of tenths of a mile driven. What is the cost if the taxi is hired to drive 4.0 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