Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 
B. 
C. 21
D. 
Answer: D
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The attendance at an elementary school open house was only half of what the principal had expected. If 103 people visited the school that evening, how many had she expected to attend?
A. 105 B. 206 C. 103 D. 205 E. 52.5 F. 309 G. 51.5
Solve the problem by applying the Fundamental Counting Principle.How many different four-letter passwords can be formed if the first letter must be an S or a T?
A. 456,976 B. 72 C. 421,824 D. 35,152
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.The following graph shows that more and more people in a certain country are moving from urban cities to the suburbs. The percent, p, of the population living in urban cities can be estimated by the equation 
and the percent of the population living in the suburbs by the equation
In both equations, t represents the number of years since 2000. That is, 
/> corresponds to 2000, 
corresponds to 2001, and so on. Assuming this trend continues, use both equations to estimate the year in which the percent of the population of this certain country living in urban cities will be equal to the percent living in the suburbs.
A. 2015
B. 2011
C. 2013
D. 2019
Write the improper fraction as a mixed or whole number.- 
A. -2
B. -2
C. -3
D. -1