Here are the properties you should look out for. hope it's easier to understand! :)
4/105 In total there are 2+4+1+8=15 The probability of taking a blue is number of blue divided by number of total, so that would be 4/15. Since, it is not replaced, we can now say that there are 1 less marbles in the bag (since we took out a blue). Now probability of getting a green marble is:2/14=1/7
Answer: 
Step-by-step explanation:
The Arithmetic Sequence Formula is:
Where:
is the 
term of the sequence.
is the first term of the sequence.
is the term position.
is the common difference of any pair of consecutive numbers.
We can observe that the first term is:
Now, we need to find "d". This is:
Then, substituting, we get the following equation:
Step-by-step explanation:
<u>Substitute the given value of x into the expression;</u>
<u />
<u>Multiply;</u>
<u />
<u>Subtract;</u>
<u />
This first picture is showing a total stack of blocks measuring 18 2/3 tall.
The stack is divided into 7 blocks that are 2 2/3 tall.
--> Second answer from bottom.
The next problem is a picture of a board that is 11 7/8 long. It is divided into 5 sections measuring 2 3/8 long.
-->3rd answer
Last problem is a picture of a rope that is 16 7/8 long. It is cut into 9 pieces that are 1 7/8 long.
--> 3rd answer
