Write a positive or negative fraction to describe the situation.Rickey gained 
pound during summer vacation.
A. - 
B. 
C. - 
D. 
Answer: D
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Find the exact circumference of the circle.
A. 3.6? mi B. 3.6?2 mi C. 1.8?2 mi D. 1.8? mi
For the piecewise function, find the specified function value.
f(x) = {
f(-8)
A. 6 B. -10 C. -72 D. 72
Solve the problem.A woman works out by running and swimming. When she runs, she burns 8 calories per minute. When she swims, she burns 10 calories per minute. She wants to burn at least 400 calories in her workout. Graph an inequality that describes the situation. Let x represent the number of minutes running and y the number of minutes swimming. Because x and y must be positive, limit the graph to quadrant I only.
A. 
B. 
C. 
D. 
Approximate the given square root to the nearest hundredth using the guess-and-check method.
A. 11.00 B. 11.27 C. 11.26 D. 11.29