Simplify the algebraic expression.4x + x
A. 4x2
B. 5
C. 5x
D. 5x2
Answer: C
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Solve the problem by using two equations with two variables.A movie theater charges $10.00 for adults and $8.00 for children. If there were 40 people altogether and the theater collected $368.00 at the end of the day, how many of them were adults?
A. 24 adults B. 29 adults C. 10 adults D. 16 adults
Find the area enclosed by the given curves.Find the area of the region between the curve y = 23-x and the interval 0 ? x ? 2 on the x-axis.
A. 
B. 6 ln 2
C. 
D. 8
Rewrite as a single logarithm using the quotient rule for logarithms. Assume all variables represent positive real numbers.loga1,000,000 - loga 1000
A. loga 999,000
B. loga 
C. loga 1000
D. 1000 loga 1,000,000
Solve the rational inequality. Express the solution in interval notation.
? 0
A. (-?, -12] ? [8, ?) B. (-?, -12] ? (1, 8] C. [-12, 1) ? [8, ?) D. [-12, 1) ? (1, 8]