Solve.x + 12.6 = 33.1
A. 21.5
B. 20.5
C. 20
D. 24.5
Answer: B
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Solve the problem. Express any improper fraction as a whole or mixed number.Frank can type a report in 2 hours. James takes 8 hours to type it. How long will it take the two of them typing together?
A. 
hr
B. 2
hr
C. 1
hr
D. 
hr
Write an algebraic equation and use it to solve the problem.During a road trip, Tonya drove one-third the distance that Lana drove. Mark drove 12 miles more than Lana. The total distance they drove on the trip was 530 miles. How many miles did each person drive?
A. Tonya drove 70 miles, Lana drove 210 miles, and Mark drove 222 miles. B. Tonya drove 222 miles, Lana drove 666 miles, and Mark drove 678 miles. C. Tonya drove 666 miles, Lana drove 222 miles, and Mark drove 210 miles. D. Tonya drove 74 miles, Lana drove 222 miles, and Mark drove 234 miles.
Use Euler's formula to answer the question.A pyramid has 16 edges. How many vertices does it have?
A. 16 B. 7 C. 8 D. 9
Write the expression as a pure imaginary number.- 
A. -2
B. 2
C. 2
i
D. -2
i