Marie has a building that is 40 feet wide, 70 feet long, and 16 feet high. How many cubic feet of hay can she store in this building if she can only go to 12 feet high?

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