Simplify. Assume that all variables represent positive numbers.
A. 28
B. 4
C. 18
D. 4
Answer: B
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Solve.A rectangle that is x feet wide is inscribed in a circle of radius 20 feet. Express the area of the rectangle as a function of x. Graph the function and from the graph determine the value of x, to the nearest tenth of a foot, which will maximize the area of the rectangle.
A. 28.3 feet B. 28.7 feet C. 29.1 feet D. 27.9 feet
Graph the system of inequalities. Shade the region that represents the solution set.y > x27x + 7y ? 49 
A. 
B. 
C. 
D. 
Write the rational number as a decimal and state whether the decimal is repeating or terminating.
A. 0.3 terminating B. 0.25 terminating C. 0.35 terminating D. 0.15 terminating
Solve the problem.What is the probability that at least 2 people have the same birth month in a group of 8 people?
A. 0.954 B. 0.956 C. 0.046 D. 0.044