Ms. Sewell says, "To get from A to B, I can move over 3 and up 4, and to get from C to D, I can move over 2 and up 5. Since both of these paths are 7 units long, AB and CD are the same length."

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