Saul has 130 baseball cards. how many baseball cards does he need to get so that he will have 200 baseball cards in all?

David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

In the geometric progression –3, 12, −48… what term is 3,072?