Find in litres the total capacity of 3 bottles which can contain 69cl, 80cl, and 4l of liquid.

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?

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11

Using elimination, what is -4x+2y=-12 4x+8y=-24