A survey showed that students had these preferences for instructional materials. Use the graph to answer the question.
About how many students would you expect to prefer written materials in a school of 500 students?
A. About 180 students
B. About 45 students
C. About 9 students
D. About 90 students
Answer: B
Mathematics
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Divide the real numbers. Write any improper fraction as a whole or mixed number where appropriate.63 ÷ (-9)
A. 8 B. -8 C. -7 D. 7
Mathematics
Use a proportion to solve the problem.On a map, the length of a nature-center trail is 7.4 centimeters. If the scale is 3 centimeters to 40 kilometers, what is the actual length of the trail?
A. 102.7 kilometers B. 197.4 kilometers C. 99.7 kilometers D. 98.7 kilometers
Mathematics
Use a combination of rules for exponents to simplify. Write answers with only positive exponents. Assume that all variables represent nonzero real numbers.
A. 622 B. 67 C. 618 D. 611
Mathematics
Determine whether the diagram could represent a function.
A. Yes B. No
Mathematics