Answer:
9in
Step-by-step explanation:
radius is half the diameter
18/2 is 9 so the radius is 9in
X is 5
Y is 25 and then you just multiply by 3 each time
<span>x 2 + 2x + 1 if you wanted is just 4x+1
</span>
Answer:
13.5
Step-by-step explanation:
Answer:

Step-by-step explanation:

Hope this helps!