20. The temperature of a city during a week was 1° C, -6°C, 14°C, -9°C, -15°C, 8°C and -7°C. What was the average daily temperature of the town
for the week?

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