Solve the problem.In a school survey, students showed these preferences for instructional materials. Answer the question. 
About how many students would you expect to prefer computers in a school of 850 students?
A. About 170 students
B. About 36 students
C. About 306 students
D. About 153 students
Answer: C
Mathematics
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Find percent notation for the number in decimal notation.Attendance this year was 9.06 times greater than last year.
A. 90.6% B. 0.0906% C. 9060% D. 906%
Mathematics
Assume you have a graph with vertex set V = {A, B, C, D, E} and edge set E = {CD, CB, DA, DB, EA, AA}.The degree of vertex B is
A. 1. B. 3. C. 2. D. 0. E. none of these
Mathematics
Solve the linear equation with the intersection-of-graphs method. Approximate the solution to the nearest hundredth if necessary.9.9(x - 1) = 
x - 2.1
A. -1.28 B. 0.75 C. 0.83 D. -1.15
Mathematics
Perform the indicated operation and express in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics