Eugene had some paper with which to make cards. On his way to his room he found three more pieces to use. In his room he cut each piece of paper in half. When he was done he had 12 half-pieces paper. With how many pieces of paper did he start?

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

52 cm radius = diameter = area = circumference = circumfer