Please help lol “the opposite of a positive number is always zero, positive or negative which one is it!

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Joanie watched 1 out of three of a movie in the morning