Solve.If 2.7 pounds of a certain grain cost $2.43, how much will 5.2 pounds of the grain cost?
A. $4.79
B. $4.38
C. $3.62
D. $4.68
Answer: D
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Solve the problem.Jeremy's car got 260 miles (highway) on 10 gallons of gasoline. What was the mean number of miles expected per gallon?
A. 28 mpg B. 26 mpg C. 25 mpg D. 27 mpg
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Solve the problem.Park rangers catch, tag, and release 240 water buffalo back into a wildlife refuge. Two weeks later they observe a sample of 210 buffalo, of which 6 are tagged. Assuming that the ratio of tagged buffalo in the sample holds for all buffalo in the refuge, how many buffalo are there in the park?
A. 10,500 buffalo B. 8400 buffalo C. 6300 buffalo D. 7350 buffalo
Identify the center and radius of the circle.
?
?
A. Center: 
Radius: 
B. Center:
Radius: 
C. Center:
Radius: 
D. Center:
Radius: 
E. Center:
Radius: 