Determine whether the equation in one variable is linear.
x + ? = 0.
A. linear
B. not linear
Answer: A
Mathematics
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Solve the problem.Doctors use the rational expression 
to determine the dosage of a drug prescribed for children. In this expression, A = child's age and D = adult dosage. What is the difference in the child's dosage for an 8-year-old child and a 4-year-old child? Express the answer as a single rational expression in terms of D.
A. 
D
B. 
D
C. 14D
D. 
D
Mathematics
Change the percent to a decimal.400%
A. 4.01 B. 0.4 C. 4.0 D. 40
Mathematics
Determine whether the functions f and g are inverses of each other.f(x) = 2x + 3; g(x) = 
A. Yes B. No
Mathematics
Use the properties of logarithms to write the following expression as a single logarithm with a coefficient of 1.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics