Multiply and simplify. ? 

A. - 
B.
C.
D. -12


Answer: A

Mathematics

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Provide an appropriate response.Decide whether the expression is positive, negative, or zero. 

A. Positive B. Negative C. Zero

Mathematics

Solve.x2 - 16x + 63 = 0

A. -7, 9 B. -7, -9 C. 63, 0 D. 7, 9

Mathematics

Solve the system of equations by the addition method.

A. (-5, 5) B. (4, 5) C. (5, 4) D. no solution

Mathematics

Solve the problem.To calculate the drug dosage for a child, a pharmacist may use the formula  The child's age is x and the adult dosage is D. What is the dosage for an  old child if the adult dosage is 60 mg? (Round to the nearest tenth.)

A. 60.0 mg B. 24.0 mg C. 17.1 mg D. 4.3 mg

Mathematics