If a rectangular prism has a volume of 1,890 feet, a height of 15 feet, and a width of 18 feet, what is the length?

The value √10 and √15 are plotted on the number line

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 is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)