Find the indicated sum. Find the sum of the first 10 terms of the geometric sequence: 
, - 
, 
, - 
, 
, . . .
A. - 7381
B. - 
C. - 7384
D. - 7382
Answer: A
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Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.45 plus $0.08 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
How many minutes were used for long distance if the long-distance phone bill was $23.05?
A. 288 minutes B. 220 minutes C. 231 minutes D. 200 minutes
Solve the problem.The concentration of a drug in the bloodstream, measured in milligrams per liter, can be modeled by the function, 
where t is the number of minutes after injection of the drug. When will the drug be at its highest concentration? Approximate your answer rounded to two decimal places.
A. t = 4 minutes after the injection is given B. t = 3.65 minutes after the injection is given C. t = 0.55 minutes after the injection is given D. at the time of injection
Simplify.
+ 
A. 
B. 
C. 
D. 
Simplify.92 + 72 + 4
A. 36 B. 134 C. 68 D. 260