pg.3

18.Which, if any of the following statements is always true?

A. If the numerator and the denominator of a fraction are increased or decreased, by the same amount, the value of the fraction is unchanged.
B. If the numerator and the denominator of a fraction are squared, the value of the fraction is unchanged.
C. The square of any number is greater than that number.
D. If unequal quantities are added to unequal quantities, the sums are unequal.
E. None of the above.

I got E

A - Give yourself an example and see which way is correct

e.g. start with 5/8
now add 1 to both top and botto ---> 6/9
Is the value the same ????

B. Again, test with an example

C. start with 5 , 5^2 = 25 mmmhh?
how about 1/3 , what is (1/3)^2 or 1/9 compared with 1/3
Hint: try it with numbers between 0 and 1 and with numbers greater than 1

D. that one should be easy.
Remember, all you need is one example that shows the statement to be false for the statement to be false.