A bag contains n counters. One counter is blue and one is red.
Two counters are taken at random from the bag.
a, express in terms of n, the probability that a counter of each colour is taken. Give as a fraction in its simplest form.
b, the probability that a counter of each colour is taken is 0.125
How many red counters are in the bag?

What is the y-intercept of the line given by the equation

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

1- 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.2- 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 the first question?