Answer:
There is a  chance of the spinner landing on red, then three.
 chance of the spinner landing on red, then three.
Step-by-step explanation:
So the first one has a  chance, since there are four possibilities.
 chance, since there are four possibilities.
The second one has a  chance, since there are three possibilities.
 chance, since there are three possibilities.
So, we just need to combine them.

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The formula for volume is V=Bh where  B is the area of the base. 
plug in what they have given you:
600=B(15) you can divide both sides by 15
40=B    We know that a cylinder's base is a circle so we can use the area f                           formula for a circle to solve for the radius.
40 = pi(r)^2   divide both sides by pi to get the r^2 alone
40/pi=r^2     square root both sides to get rid of the square
you should get
r=3.5 approximately