Use percents, percent equations, and/or percent proportions to solve the application.Students enrolled in a prealgebra class can withdraw within the first two weeks without receiving a grade. If there were 30 students registered for class on the first day and 22 remaining at the end of the second week, what was the percent decrease in students for the first two weeks? Round to the nearest tenth of a percent, if necessary.
A. 36.4%
B. 73.3%
C. 26.7%
D. 63.6%
Answer: C
Mathematics
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Find the average value of 
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Mathematics
Perform the indicated operation and simplify.
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Reduce the fraction to lowest terms.
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Mathematics