Which of the following sets are not well-defined?
set of all counting number
set of all even integers
set of integers greater than 6 but less than 10
set of four best actors in the world

Aline passes through 3,7 and 6,9 what equation represents the line

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

What is always true when two whole numbers are subtracted?