Find the sum of the series.
A. 
B. 7
C. 14
D. 
Answer: B
Mathematics
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Aviva has a total of 52 coins, all of which are either dimes or nickels. The total value of the coins is $4.25. Find the number of each type of coin.
A. 24 nickels; 28 dimes B. 33 nickels; 19 dimes C. 21 nickels; 31 dimes D. 19 nickels; 33 dimes
Mathematics
Express the number in terms of j.
A. j
B. -z6j
C. z6
D. z6j
Mathematics
Simplify.
A. -3x11 B. 3x11 C. 3x7 D. -3x7
Mathematics
Rewrite the problem as a multiplication problem.n รท m = 30
A. n = 30 ? m B. n ? m = 30 C. m ? n = 30 D. n ? 30 = m
Mathematics