Answer:
512000
Step-by-step explanation:
l=80cm
v=l^3
=80^3
=512000cm^3
Earth: radius = 6378 kilometer, diameter = 12756 kilometers.
Since simple interest doesn't involve compounding, the same amount gets added on every year. So, the equation for the simple interest received is
![I = Prt](https://tex.z-dn.net/?f=I%20%3D%20Prt)
, where
![I](https://tex.z-dn.net/?f=I)
is the total interest,
![P](https://tex.z-dn.net/?f=P)
is the original deposit (or "principal"),
![r](https://tex.z-dn.net/?f=r)
is the interest rate, and
![t](https://tex.z-dn.net/?f=t)
is the time passed in years.
Plugging in our values, we can solve for the interest rate:
![I = Prt](https://tex.z-dn.net/?f=I%20%3D%20Prt)
![\$1380 - \$1200 = (\$1200)(r)(3 years)](https://tex.z-dn.net/?f=%5C%241380%20-%20%5C%241200%20%3D%20%28%5C%241200%29%28r%29%283%20years%29)
![\$180 = (\$1200)(r)(3 years)](https://tex.z-dn.net/?f=%5C%24180%20%3D%20%28%5C%241200%29%28r%29%283%20years%29)
Not me but I do go to somewhere is spring where are y’all?
I don't know sorry I tried to work it but didn't work