So if the larger pennant is 18”x 9” x 9”
and the smaller one is about the same in similar size, with the bass measuring 6”..
I would take the bases of both and divide them 6” smaller base goes in to the 18” larger base 3 times so I take the sides 9” and see what goes into it 3 times 9 divided by 3 is 3 .. so the sides would be 3 making the smaller triangle 6x3x3
Volume = length x width x height or V = lwh as a formula if you will.
Let's substitute what we know into the formula:
100 = 4(5)h multiply the 4(5) on the right side
100 = 20h divide both sides of the equation by 20
5 = h
the height of the rectangular box is 5 feet
I believe that,that is the only form you can write it because if you do 7-15 it's -8 so that's the only way that you can write it.
7 or 429 not really sure tbh