Answer:

Step-by-step explanation:
Split the diametre in half before proceeding:

I am joyous to assist you at any time.
Answer:

Step-by-step explanation:
Quadratic formula:
when the equation is 
The given equation is
. Let's first arrange this so its format looks like
:


Subtract 1 from both sides of the equation

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

I hope this helps!
The x=7y-4 one and put it to where the x in the other equation is.
Answer:
$3.34 for each pound of popcorn
Step-by-step explanation:
All we must do, in this case, is divide 8.35 by 2.5.
This equals 3.34.
Therefore, each pound of popcorn cost $3.34.
Don't believe me? To check, just multiply 3.34 by 2.5.
Please let me know if you need help with anything else. :)