Find the indicated quantity.a25, when a1 = -7 and d = 
A. - 1
B. - 
C. - 13
D. - 
Answer: A
Mathematics
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Solve the problem.A merchant has coffee worth $5 a pound that she wishes to mix with 8 pounds of coffee worth $9 a pound to get a mixture that can be sold for $6 a pound. How many pounds of the $5 coffee should be used?
A. 16 lb B. 32 lb C. 24 lb D. 12 lb
Mathematics
Factor out the greatest common factor.3x2y5 + 21x2y4
A. 3x4y2(y + 7) B. x2y4(3y + 7) C. y + 7 D. 3x2y4(y + 7)
Mathematics
Find the derivative function of the given function.f(x) = 7x + 9
A. f'(x) = 7x B. f'(x) = 0 C. f'(x) = 9 D. f'(x) = 7
Mathematics
Simplify the fraction.
If the fraction is undefined, answer undefined.
What will be an ideal response?
Mathematics