Perform the addition or subtraction and simplify.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: B
Mathematics
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Find the LCM for the following numbers: 6, 15
a. 3 b. 2 c. 15 d. 30
Mathematics
Solve the problem.In an arithmetic sequence with first term P1 and common difference d, the Nth term is given by
A. P1 + Nd. B. d + NP1. C. d + (N - 1)P1. D. P1 + (N - 1)d. E. none of these
Mathematics
Add and subtract as indicated.12 + (-20) - 4 - (-2) + (-4)
A. -14 B. -18 C. 38 D. -10
Mathematics
Solve the system by substitution.5x - 2y = -1 x + 4y = 35
A. {(3, 9)} B. {(3, 8)} C. {(2, 9)} D. {(2, 8)}
Mathematics