Will bought 3 college textbooks. one cost $32, one cost $45, and one cost $39. what is the average price of his books? choose the statement that correctly calculates the average.
a($32 + $45 + $39) ÷ 3
b. $32 + $45 + $39 ÷ 3
c. $32 ÷ 3 + $45 ÷ 3 + $39
d. 3 × $32 + $45 + $39

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