Multiply.4x7(-6x5 + 12x3)
A. -24x12 + 48x10
B. 24x7
C. 24x12 + 24x10
D. -24x12 + 12x3
Answer: A
Mathematics
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Solve the problem.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 4 bags of 18% cement to produce a mix containing 10% cement?
A. 25 bags B. 18 bags C. 20 bags D. 16 bags
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation where possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Perform the conversion. Round to the nearest tenth when necessary.23.5 ft to m
A. 7.2 m B. 21.5 m C. 25.6 m D. 77.1 m
Mathematics