N+8>11 is the answer you are looking for
Answer:
The number of marbles Richard has 24 and John has 6.
Step-by-step explanation:
Richard has four times as many marbles as john.
If Richard have 18 to John they would have the same number.
Now, to find number of marbles each has.
Let the marbles of John be
.
And the marbles of Richard be 
According to question:

<em>Subtracting both sides by
we get:</em>

<em>Dividing both sides by 3 we get:</em>

<u><em>Marbles of John</em></u><em> =
</em>
<u><em>Marbles of Richard</em></u><em> =
</em>
Therefore, the number of marbles Richard has 24 and John has 6.
Assuming that means 1.10^t:
0.10 is for years. To get months divide by 12.
0.10/12 = 0.0083333...
And (1+0.083333...) = 1.0833333. (You will have to multiply t by 12 also to get it in terms of months)
(1.0833333)^12t
670,130,000 Km or 416,399,477 Miles apart
It will take them 5 months and they will each have 108 stamps