Find the most important variable in the problem.

If a company hired an additional 12 employees, and every employee needed a phone, it would require 8 more phones. How many phone does the company have available now?

A. The number of phone available
B. The money required to purchase phones
C. The number of employees hired

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