In a class of 70 students, 40 belong to the Red Cross society, 27 belong to the Girls Guide Society and 12 belong to both the Red Cross Society and Girls Guide Society. The remaining students do not belong to any of the two societies. ( I) Illustrate the information on a venn diagram.
( ii) How many students belong to the Red Cross Society only?.
( iii ). How many students do not belong to any of the two societies?

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Which of the following will form the composite function?