Estimate the:
length of a pen
length of a swimming pool
length of a marathon race

Arestaurant needs to buy thirty-seven new plates. if each box has five plates in it, how many boxes will they need to buy?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a 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?