Determine whether the relation is a function: {(–1, –2), (–2, –3), (–3, –1)}. Yes. One input results in one output. No. At least one output results in two inputs. Yes. One output results in one input. No. At least one input results in two outputs.

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?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?