Add the following hexadecimal numbers. Check using decimals. 

A. CA42
B. CA55
C. CA3F
D. CA49
E. CA59


Answer: B

Mathematics

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Give the numerical coefficient of the term.18k2

A. 324 B. 2 C. 36 D. 18

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Solve.Phillip bought a car part for $38.86. If he paid with two $20 bills, what was his change?

A. $2.14 B. $2.00 C. $1.14 D. $1.24

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Andrea, a self-employed individual, wishes to accumulate a retirement fund of $270,000. How much should she deposit each month into her Keogh account, which pays interest at the rate of 9.5%/year compounded monthly, to reach her goal upon retirement 23 years from now? Round your answer to the nearest cent.

R = $__________

Mathematics

Solve the problem.The width of a rectangle is 6 kilometers less than twice its length. If its area is 56 square kilometers, find the dimensions of the rectangle.

A. width = 7 km, length = 8 km
B. length = 7 km, width = 8 km
C. length = 3 km, width =  km
D. length = 4 km, width = 2 km

Mathematics