You'll notice that 36's prime factors had 2 even, and none other had an even number of even prime factors. Therefore, if you have an even number of even prime factors, your square root will be rational given the data
<em>90</em> and all of its multiples are.
This is so easy. You should try before posting a question on this site. No offense.
Having said that im still here to help :)
10. 4,2 -3,5
11. Sorry dont know this one
12. Plot a point at -3,-4 label is Resturant
13. Plot a point at 0,-3 label it Beth
I will only post these ones, The others are extremely simple.