Pi(r)(r)(2) + pi(diameter)(height)
3.14(4)(4)(2)+ 3.14(8)(1.5)
138.16
Answer:

Step-by-step explanation:
we know that
To find out the scale factor divide the corresponding dimensions of the model by the corresponding dimensions of the actual
so

simplify

That means
1 inch in the model represent 9 feet in the actual
The first drop down menu is 0 then second is 230. The third one is Become larger. And the last one is Quicker. Hope this helps :)
Each section of the tree diagram (in this case the branches that say vanilla chocolate and strawberry) must add up to 1
so to answer you should do 0.45+0.35= 0.8
then 1-0.8 =0.2
so Z is 0.2
Hope this helps explain it