Answer:
The answer is 
Step-by-step explanation:
Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

Differentiating wrt r we have:

We are told that
and we want to find 
By the chain rule we have:

∴
∴
When D=10 then

The sign (-) shows that the D is decreasing.
Answer: 6767/10000
Step-by-step explanation:
Just simplify it by its nearest tenth
Adding 49 will explain it properly just do that and you will get the answers
Answer:
I might be wrong double check but it's something like
Step-by-step explanation:
4x/3-40/3
(not to sure on that so don't be mad if it's wrong)