Dana wants to solve 72 × 3 = □. which strategy could she use? a. (70 × 2) + (70 × 3) = □ b. (70 × 3) + (2 × 3) = □ c. (7 × 3) + (2 × 3) = □ d. (7 × 2) + (7 × 3) = □

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