Solve the problem.Junior high classes of 25 students each met in the cafeteria to take achievement tests. If exactly 8 students sat at each table and 25 tables were used, how many classes took the tests?
A. 11 classes
B. 8 classes
C. 10 classes
D. 21 classes
Answer: B
Mathematics
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Evaluate.(-3)3
A. -27 B. 27 C. -81 D. 9
Mathematics
Identify the base used in the computation.
= 42
A. Base ten B. Base five C. Base four D. Base six
Mathematics
Find the probability.The table lists the eight possible blood types. Also given is the percent of the U.S. population having that type.
Let E be the event that a randomly selected person in the U. S. has type B blood. Let F be the event that a randomly selected person in the U. S. has RH-positive blood.Find P(F|E).
A. 0.818 B. 0.340 C. 0.720 D. 0.107
Mathematics
Find the integral. 
A. e ln 
+ C
B. x + C
C. 
+ C
D. ln 
+ C
Mathematics