Simplify the expression. ? 

A.
B.
C.  
D.


Answer: D

Mathematics

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Find the product. ? 

A.
B. 4
C.
D.

Mathematics

Solve.The monthly cost of a certain long distance service is given by the linear function  where C(t) is in dollars and t is the amount of time in minutes called in a month. Find the cost of calling long distance for 140 minutes in a month.

A. $18.75 B. $23.95 C. $9.80 D. $19.75

Mathematics

Find the value of the annuity at the end of the indicated number of years. Assume that the interest is compounded with the same frequency as the deposit. mnrt$350quarterly9%20?

A. $77,717.44 B. $76,123.47 C. $76,691.15 D. $78,069.56 E. $57,068.70

Mathematics

Solve the system of linear equations, using the Gauss-Jordan elimination method.

Mathematics