Write an equivalent fraction with the given denominator. 
= 
A. 6
B. 20
C. 10
D. 2
Answer: B
Mathematics
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Solve by the elimination method. x - 6y = 7 2x - 5y = 14
A. {(7, 0)} B. {(8, 7)} C. No solution D. {(8, -1)}
Mathematics
Solve the equation.-56 = 7k
A. k = 63 B. k = 1 C. k = -8 D. k = -63
Mathematics
Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = 
, u = 4x - 3
A. - 
B. - 
C. 
D. - 
Mathematics
Solve.logx81 = 2
A. x = 
B. x = -9
C. x = 9
D. x = -2
Mathematics