Determine whether the given value is a solution of the equation.
(7 - x) = x; 4
A. A solution
B. Not a solution.
Answer: A
Mathematics
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Provide an appropriate response.Use a calculator to multiply and reduce answers to lowest terms: 
A. 
B. 
C. 
D. 
Mathematics
Solve.Two cars leave an intersection. One car travels north; the other east. When the car traveling north had gone 18 miles, the distance between the cars was 6 miles more than the distance traveled by the car heading east. How far had the eastbound car traveled?
A. 30 miles B. 24 miles C. 36 miles D. 18 miles
Mathematics
Evaluate the expression.(-2)3 - (-2)2
A. 4 B. -12 C. -4 D. 12
Mathematics
Find the specified domain.For f(x) = x2 - 4 and g(x) = 2x + 3, what is the domain of f - g?
A. (-2, 2) B. [2, ?) C. (-?, ?) D. [0, ?)
Mathematics