Acoin is tossed and a number cube is rolled what is p(heads, a number less than 5)

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?

Asap! i'm not good math and i'm lost.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top