Domain: all real numbers
Range: y>-3
13 is a whole number, integer, natural number and rational number. Rational number because it can be written as a fraction like 13/1. It is a whole number because it doesn't have any decimals. It is an integer because an integer is a positive or negative whole number and it is a natural number because a natural number is any positive number greater than 0.
The answer is C for this question
(Pro) = (scale or proportion) * (Youth)
this formula could be used to find the difference in the fields. if they are directly proportional then it means that the fields are similar polygons.
