2. if a, b are non-zero rational numbers, and c is a non-zero irrational number, what can we say about
?
o
it is an irrational number.
it is an integer.
ooo
it is a rational number.
it is a perfect square rational number.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.