Functionf is
.
?
Find 
.
??
A. 63
B. 57
C. 7
D. 60
E. 54
Answer: C
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Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 9 terms of the geometric sequence: 8, -16, 32, -64, 128, . . . .
A. 1375 B. 1368 C. 1362 D. 1366
Evaluate.Let a = 
. Find -5a.
A. 
B. 
C. 
D. 
The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring, versus 2 man-hours to make one SST ring.How many of each type of ring should be made daily to maximize the company's profit, if the profit on a VIP ring is $40 and on an SST ring is $30?
A. 10 VIP and 14 SST B. 14 VIP and 10 SST C. 14 VIP and 14 SST D. 12 VIP and 12 SST
Solve the system of equations using substitution.
A. x = 8, y = -5 B. x = 8, y = 5 C. x = -8, y = -5 D. x = -8, y = 5