Solve the problem.Rule: The sum of any two horizontally adjacent numbers is the number immediately below them. Use this rule to complete the array. 
A.
B.
C.
D.
Answer: D
Mathematics
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Solve.310 - 2x = 9
A. 3 B. 4 C. -4 D. 5
Mathematics
Solve and graph. Write the solution in interval notation.5 + 2 ? 20
A.
B.
C. ?
D.
Mathematics
Identify the polynomial as a monomial, binomial, trinomial, or none of these. 12z + 1
A. Trinomial B. Monomial C. None of these D. Binomial
Mathematics
Subtract.-6.7 - (-3.9)
A. 10.6 B. -2.8 C. 2.8 D. -10.6
Mathematics