Use an integer to express the number.The stock market gained 18 points on Monday.
A. 18
B. -18
Answer: A
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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%
Solve the problem.There are 7 L of juice in the fridge and Maria drinks 300 ml of the juice. How much juice remains?
A. 69,700 mL B. 6700 L C. 7300 mL D. 6700 mL
Simplify the expression. Write the answer using positive exponents.
-5
A. 32c5
B. - 
C. 
D. 
Simplify the expression. Assume all variables represent nonnegative real numbers.z1/2 ? z2/3 ? z5/7
A. z42/79 B. z1/4 C. z4/15 D. z79/42