If 72 exponent parentheses X equals one what is the value

Josephine has a great garden with and area of 2x2 + x - 6 square feet

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

Tom drove 206 miles in 3.9 hours. estimate his average speed.