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