Cindy Decided to shop online she was buying books 6 dollars each and candles four dollars each She bought 14 items and spent$78how many books did she buy

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Need on this geometry question. explain how you did it.

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?