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Z=$$123^{4}$$-$$123^{3}$$+$$123^{2}$$-123

What is the remainder when Z is divided by 122?
Approximately what percent of the families in the sample own more than 3 motor vehicles?
How many of the families own exactly 2 motor vehicles?
If a family were selected at random from the survey sample, what is the probability that the family would own more than 2 motor vehicles?
If a, b, and c are positive integers such that $$\frac{a}{c}$$=0.075 and $$\frac{b}{c}$$=0.09, what is the least possible value of c?
If y=1- $$\frac{1}{x}$$ , where x is a nonzero integer, which of the following could be the value of y?

Indicate all such values.
(-0.5)-2, (-0.5)-1, (-0.5)0, (-0.5)1, (-0.5)2, What is the range of the 5 numbers listed?


Tickets for a carnival are sold either individually or in packages of 10 tickets or 20 tickets at the costs shown in the table. A group of friends bought n tickets for the least possible total cost. A second group of friends bought more than n tickets for a total cost that was less than the first group`s total cost. Which of the following could be the value of n?

Indicate all such values.
All the music from fourteenth-century Europe for which written scores survive is so complex and is written in such difficult notation that it could have been played only by musicians whose lives were dedicated solely to such performance. Yet fourteenth-century European accounts, which in this respect probably give accurate portrayals of their times, describe many members of the nobility who excelled not only in musical performance,but also in dancing, poetry, and painting.
The statements given, if true, most strongly support which of the following?

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