3+ 2(2x - 7) + X = -21?

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

Jim had 15 minutes to do 5 laps around his school what would his time be

The longer leg of a 30-60-90 trangle is 18