Multiply.-2a2b4(-7a5b6 + 10b5 - 4a)
A. 14a5b6 - 20b5 + 8a
B. 14a7b10 - 20a3b9 - 4a
C. 14a7b10 + 10b5 - 4a
D. 14a7b10 - 20a2b9 + 8a3b4
Answer: D
Mathematics
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Use the counting principle to obtain the answer.A salesman packed 3 shirts and 6 ties. With one shirt, he could wear all 6 ties. With another shirt, he could wear 5 ties. With the third shirt, he could wear only 2 ties. How many different combinations did he have?
A. 13 B. 60 C. 32 D. 12
Mathematics
Factor out the GCF.t9 - 17t4
A. t4(t5 + 17) B. t5(t4 - 17) C. t(t8 - 17t3) D. t4(t5 - 17)
Mathematics
Write the percent as a decimal.61%
A. 0.061 B. 6.1 C. 0.61 D. 61.0
Mathematics
Simplify.
A. Not defined
B. 
C. 0
D. 16
Mathematics