Use percents, percent equations, and/or percent proportions to solve the application.Students enrolled in a prealgebra class can withdraw within the first two weeks without receiving a grade. If there were 30 students registered for class on the first day and 22 remaining at the end of the second week, what was the percent decrease in students for the first two weeks? Round to the nearest tenth of a percent, if necessary.
A. 63.6%
B. 26.7%
C. 73.3%
D. 36.4%
Answer: B
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Simplify the expression.(
)2
A. -3j B. 3 C. 3j D. -3
Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = -4(x - 5)2 + 8
A. Take the graph of y = x2 and shift it 5 units to the left, shift it 8 units up, vertically stretch it by a factor of +4, and the graph will open downward. B. Take the graph of y = x2 and shift it 5 units to the right, shift it 8 units up, vertically compress it by a factor of +4, and the graph will open downward. C. Take the graph of y = x2 and shift it 5 units to the right, shift it 8 units up, vertically stretch it by a factor of +4, and the graph will open downward. D. Take the graph of y = x2 and shift it 5 units to the left, shift it 5 units down, vertically stretch it by a factor of +4, and the graph will open upward.
Find the indicated fractional part.
of 
A. 
B. 
C. 
D. 
Express the following in interval notation.
A. (-?, -3) ? [1, ?) B. (-?, -3] ? (1, ?) C. [-3, 1) D. (-?, -3) ? (1, ?)