It is actually quite simple: they are asking for the probability:
there are different types of items and each types there is always at least a 25 cent difference in between (if you go up the or down the scale there will be a 25 cent difference to each type of item. They say that Sam wants to get one of the 8 items. The price at this point doesn't matter. If he wants 1 of the 8 types all you have to do is convert it into a fraction: 1/8. That is the answer
Hope I helped...
For this case, we have that by definition, an irrational number is a number that can not be expressed as a fraction
, where a and b are integers and b is different from zero.
So, we have the irrational numbers are:

Answer:
Option B, D and E
Answer:
The lateral surface area is 
Step-by-step explanation:
we know that
The lateral surface area of a cylinder (soup can) is equal to

we have


substitute
-----> exact value
----> approximate value