The 1st layer has 1 cubes, which is also 1²,
the 2nd layer has 4 cubes, which is 2²
the 3rd layer has 9, which is 3²
the nth layer has n² cubes
Answer:
In 24 years.
Step-by-step explanation:
Let the sum of money be 100 which amounts to 200 ( doubles itself ) in 6 years time. Interest on 100rs. Is 100. Putting the following in simple interest formula. You get :

Now when 100 will become 5 times i.e 500 the interest will be 400rs.
Putting in simple interest formula:

So, in 24 years, it will become 5 times.
Answer:
$20.70
Step-by-step explanation:
$9.20 x 2 1/4 (lbs) = $20.70
Part A
I believe it is A, a group of advisors
Part B would be D, “people who advise the president”