Solve the application and answer with a complete sentence.Last year, Mira bought school supplies that totaled $9.12. Of that amount, she paid 
What percent of the total paid for school supplies was not for paper?
A. 25% of the total paid for school supplies was not for paper.
B. 75% of the total paid for school supplies was not for paper.
C. 7.5% of the total paid for school supplies was not for paper.
D. 1.3% of the total paid for school supplies was not for paper.
Answer: A
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Solve the problem.Jack borrowed $340 from his brother. Jack's brother wants 6 monthly payments of 
to repay the loan. How much extra is Jack's brother charging for the loan?
A. $200 B. $540 C. $110 D. $640
Multiply or divide.(-20)(2)
A. 20 B. -20 C. -42 D. -40
Does the problem involve permutations or combinations? Do not solve.From 8 names on a ballot, a committee of 3 will be elected to attend a political national convention. How many different committees are possible?
A. permutations B. combinations
Use identities to write the expression as a single function of x or ?.cos (? + 90°)
A. cos ? B. -cos ? C. -sin ? D. sin ?