What is 3 1/2 minus 1 1/2

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

What does the relationship between the mean and median reveal about the shape of the data

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points