Find the sum of the digits of each multiple of 9 below

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?

Rewrite so the subject can be y in the formula d=m-y/y+n

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0