Using the variable p and the coefficient 4, write an algebraic expression that represents: "the product of a number and p subtracted from 19".

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 a possible solutions of the x> 3?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.