PART ANSWER:
Hi. I don't know the entire answer but I do know the probability of chosing a blue marble once is 25%.
5 + 3 + 2 + 2 = 12
3/12 or 1/4 = 25% or .25
Sorry I could not fully help.
Answer:
3.14
Step-by-step explanation:
First find the circumference of the circle:
= Circumference.
= 
Find the ratio of the angle in relation to the entire circle:
is what we have. So:

Use the ratio and multiply the circumference to find the length:
= 
Round answer to the hundredth:
Answer: 4
Step-by-step explanation:
First, you have to pay to get in the game ($15 - $7) and then you have $8 left. Each snack is $2, so for $8 you can get 4 snacks (2x4=8)
Because 3/4 = 9/12, anything such as 10/12, 11/12, and maybe even 12/12 will work.