Solve.A phone company charges $.38 for the first minute and $.20 for each additional minute for a long-distance call. How much will a 20 minute long-distance call cost?
A. $4.00
B. $7.60
C. $4.18
D. $4.38
Answer: C
Mathematics
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Simplify.
A. 
B. 
C. 
D. - 
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Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Mathematics
Find the indicated term.If a2 = -7 and a3 = 7, find a6.
A. -1
B. 7
C. -7
D. 
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