The post office recorded the weights of packages sent on a particular day and used the results to construct a histogram. Use the histogram to solve the problem. 
0-910-1920-2930-39Weight of Package (pounds)How many packages weighed between 10 and 19 pounds?
A. 6 packages
B. 7 packages
C. 11 packages
D. 5 packages
Answer: D
Mathematics
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A. 2
i, -2
i
B. 
+ 
i, - 
- 
i
C. 2i, -2i
D. 2 + 2i, -2 - 2i
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Write the percent as a simplified fraction or mixed number.0.2%
A. 
B. 
C. 
D. 
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Solve the problem.One bag of Alice's favorite cookies contains 488 calories. How many calories are in 4 bags of cookies?
A. 2000 cal B. 1960 cal C. 1952 cal D. 2124 cal
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Simplify.
A. 1
B. 1 - a2
C. 
D. 
Mathematics