The formula below is used to convert a temperature in degrees fahrenheit, f, to a temperature in degrees celsius,
c. c = 5/9 (f - 32) what is the temperature in degrees celsius that is equivalent to a temperature of 40

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