Solve for n in the proportion. If possible, first simplify the known fraction.
= 
A. n = 6
B. n = 7
C. n = 3
D. n = 2
Answer: D
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Solve the problem.Which of the following [A), B), C), or D)] is not a measure of spread?
A. the interquartile range B. the range C. the median D. the standard deviation E. all of these are measures of spread.
Estimate. Then find the actual sum4.147 + 15.65
A. Estimate: 19; Actual: 19.212 B. Estimate: 20; Actual: 19.797 C. Estimate: 19; Actual: 19.797 D. Estimate: 20; Actual: 19.212
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 radio in a school of 250 students?
A. About 5 students B. About 90 students C. About 45 students D. About 13 students
Find only the rational zeros.f(x) = 3x3 + 7x2 - 22x - 8
A. -4, 2, -1
B. -4, 2, - 
C. 4, -2, 
D. 4, -2, 1