Write the following as a rate in lowest terms.13 tests for 91 students
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Divide.
A. Undefined B. -79 C. 0 D. Indeterminate
Mathematics
Find the sum or difference.(2x7 + 6x9 - 7 - 7x8) - (2 - 2x8 + 3x9 - 7x7)
A. 3x9 - 9x8 - 5x7 - 5 B. 3x9 - 5x8 + 9x7 - 9 C. 9x9 - 9x8 - 5x7 - 5 D. 9x9 - 9x8 - 5x7 - 9
Mathematics
Multiply or divide as indicated.
? 
A. -12i B. 12i C. 12 D. -12
Mathematics
Simplify by removing a factor equal to 1.
A. -m B. m + 5 C. m D. -(m + 5)
Mathematics