Answer:

Step-by-step explanation:
Start with:

Combine like terms:

False, they have a different slope and y intercept
This appears to be just an expression we are simplifying, not an equation we are solving. I THINK you are saying that the expression looks like this:

If you rationalize the denominator, you would get this expression:

which, after simplifying, looks like this:

and that's as simple as I can see that one getting. You can't factor anything out of the denominator to cancel with the numerator, so I think you're as simple as you can get there!
Answer:
40
Step-by-step explanation:
20 * 1
= 20
20 * 2
= 40
72/100=72%=0.72
Plants survived divided by total plants.