The strategy we were introduced to says to as the last step before you declare that you have completed the problem. look back to see whether you solved the problem that was given check your math re-read the problem just in case. use a calculator to double check your work.

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