Martha is running in her first marwthon she can run at a rate of 336 ft per minute ten minutes later her mom starts the same course running at a rate of 732ft per min. How libg before mom catches up with martga

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