Solve the problem.135 students attended an assembly at Piper School. The student enrollment at the school is 180. What percentage of the students attended the assembly?
A. 80%
B. 75%
C. 55%
D. 65%
Answer: B
Mathematics
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Add. Simplify the result whenever possible. 
k + 
k
A. 
k
B. 
k2
C. k
D. 1
Mathematics
Subtract. Write the answer in lowest terms as a mixed number.
A. 19
B. 17
C. 18
D. 18
Mathematics
Evaluate the expression for the given values. Expression your answer as a fraction unless otherwise indicated.
x = 9, y = 5
A. 10 B. 18 C. 4 D. 2
Mathematics
Evaluate the factorial expression.
A. 5
B. 
C. 20
D. 2!
Mathematics