Answer:
7 in
Step-by-step explanation:
volume of a rectangular prism = width x height x length
width x length = area of the base
the sea shell box
200 = width x length x 5
width x length = 200/5 = 40cm^2
rock box
280 = 40in^2 x height
height = 280/40 = 7 in
Answer:
3:4
Step-by-step explanation:
Answer:

Step-by-step explanation:
We are given:

And we want to find:

This is equivalent to:

Therefore, by substitution:

Rearranging gives:

Combine like terms:

1÷81 because you square it
Move the decimal to right 3 times