Find the common ratio for the geometric sequence.3, 6, 12, 24, 48, ...
A. 
B. 6
C. 2
D. 16
Answer: C
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Find the domain of the function.f(x) = 2x + 3
A. (0, ?) B. (-3, ?) C. (-?, 0) ? (0, ?) D. (-?, ?)
Find the sum of the infinite geometric series, if it exists.45 + 15 + 5 + 
+ . . .
A. 65
B. 
C. - 
D. Does not exist
Solve the problem.A drippy faucet wastes 64 oz of water a day. If there are 38 million such drippy faucets, how much water, in gallons, is wasted in a day?
A. 2432 gal/day B. 76,000,000 gal/day C. 38,000,000 gal/day D. 19,000,000 gal/day
Solve the problem.The Paperback Trader is a book store that takes in used paperbacks for 20% of their cover price and sells them for 50% of their cover price. Pat brings in a stack of 17 paperback books to trade and gets $13.73 credit. Some of the books had a cover price of $5.98, the rest $2.98. She wants to get some Tom Clancy books having a cover price of $5.98. How many $5.98 books did she bring in and how many Clancy books can she get without paying any additional cash?
A. 6 $5.98 books, 4 Clancy books B. 6 $5.98 books, 2 Clancy books C. 6 $5.98 books, 5 Clancy books D. 11 $5.98 books, 2 Clancy books