Ihave two questions
-will the opposite of a positive number always, sometimes, or never be a positive number?
-will the opposite of a number always, sometimes, or never be greater than the number itself? provide an example

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Answer this question! 30 points and brainliest! only if you know the answer.

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?