Answer:
10
Step-by-step explanation:
2/3 of 15 is 10
Assuming you mean

where

we have by the binomial theorem

so that the given sum has a value of
.
The answer is 18xy. hope this really helps!
18 is 60% of 30. I know this because 10% of 30 is 3 and 3 * 6 is 18
A perfect number is a number where the sum of its divisors is equal to the number.
For example 6: 1 + 2 + 3 = 6
Another example is 28: 1 + 2 + 4 + 7 + 14 = 28
Here is a short list of perfect numbers: 6, 28, 496, 8128, <span>33550336, and the numbers get way bigger as we go on.</span>