Consider the arithmetic sequence with a first term of 11 and sixth term of 21. What is the sum of these first six terms?

А: 192
B: 52
C: 142
D: 96

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