NEED HELP ON THIS WILL GIVE CROWN

Matt buys 14 jars of paint. Each jar contains 300 milliliters of paint.

How many liters of paint in all is there in the jars?

4.2 L

42 L

420 L

4,200 L

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