What does this mean? I don’t understand.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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?