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 lectures in a school of 750 students?
A. About 150 students
B. About 270 students
C. About 18 students
D. About 135 students
Answer: D
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Find the indicated probability.The table below shows the soft drink preferences of people in three age groups.
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 and drinks cola.
A. 
B. 
C. 
D. None of the above is correct.
Find an equation of the line representing the given data. Write the equation in slope-intercept form, unless otherwise indicated.With 22.5% commitment, a company can clean up 50% of an acid rain forest. With 23.5% commitment, it can clean up 58% of an acid rain forest. Let y be the percent cleanup for x percent commitment.
A. y = 8x - 130 B. y = 8x + 1 C. y = 8x + 130 D. y = x + 8
Graph. Note that the equation is not in standard form.y = - 
x
A. 
B. 
C. 
D. 
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.logb (yz3)
A. logb y + logb3z B. 3 logb yz C. 3 logb y + 3 logb z D. logb y + 3 logb z