Solve the problem.If the police have 7 suspects, how many different sets of 5 suspects can they select for a lineup?
A. 2520
B. 21
C. 42
D. 35
Answer: B
Mathematics
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Solve.In calculating his weekly expenses, a contractor found that he had spent the following amounts: materials, $1569.54; labor, $2542.08; office help, $785.42; and overhead expenses, $543.96. What was his total weekly expense?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the product.(5m2z4)(3m3z2)
A. 15mz5 B. 15m5z C. 15mz6 D. 15m5z6
Mathematics
Solve the problem.Find the value of a for the line that passes through (a, -7) and (5, 8) and is perpendicular to 
A. 0
B. - 
C. - 
D. 
Mathematics
Perform the indicated operations. Write the resulting polynomial in standard form.(4x + y)2(4x - y)2
A. 256x4 + 64x2y2 + y4 B. 256x4 - 64x2y2 + y4 C. 256x4 - 64x2y2 - y4 D. 256x4 - 32x2y2 + y4
Mathematics