Provide an appropriate response.
Write a quadratic equation with roots of -7 and 
.
A. 2x2 + 11x - 21
B. 2x2 - 11x - 21
C. 2x2 + 11x - 21 = 0
D. 2x2 - 11x - 21 = 0
Answer: C
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Solve the problem.Sales for a small clothing company can be modeled by the linear function 
, where x is the number of years since 2005 and S(x) is in dollars. Find the sales in 2005.
A. $75,362 B. $0 C. $3381 D. $71,981
Rationalize the denominator. Assume that no radicands were formed by raising negative numbers to even powers. 
A. 
B. 7
C. 
D. 7
Find the requested sum of the arithmetic sequence.
A. 6
B. 16
C. 
D. 46
Solve the problem.A cable TV company charges $23 per month for the basic service plus $7 for each movie channel. Express the cost of a monthly cable bill as a function of additional movie channels.
A. C(x) = 23x + 7 B. C(x) = 7x + 23 C. C(x) = 7x - 23 D. C(x) = 23x - 7