Select the best estimate of the specified quantity.The sum 743.55 + 138.2
A. 880
B. 900
C. 870
D. 890
Answer: A
Mathematics
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Solve the problem.A student earned scores of 85, 83, 90, 94, 88, and 84 on the first six tests in a biology class. What score is needed on the seventh test to produce an 86 average?
A. 81 B. 79 C. 78 D. 80
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Perform the indicated operation.Subtract.6x9 - 8x8 + 3x7 + 7
A. 10x9 - 12x8 - 3x7 + 11 B. 10x9 - 12x8 - 3x7 + 3 C. 2x9 - 12x8 - 3x7 + 3 D. 2x9 - 4x8 + 9x7 + 11
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Solve the inequality.
< 5
A. 
or 
B. 
or 
C. 
or 
D. 
Mathematics
Solve the problem.Find the area A of a triangle with height 4 in and base 3 in.
A. A = 12 cm B. A = 12 cm2 C. A = 6 cm D. A = 6 cm2
Mathematics