Let x be the <span>heights of a maple tree and y be the height of the cherry tree.
We know:
</span>

<span>The new ratio is obtained like this:
</span>

.
From the above equation we get

.
then

Solving the above equation for y we get:

So
So the first tree is (400-160=240) more taller than cherry tree.
Can i please get an image and i will be glad to help :)
What exactly are you asking. Are you asking for area or perimeter?
Guessing the number of pennies in a jar
V=πr2h
v=π(5)^2(10)
v=250π
v=785 inches cubed