

given :
volume = 115 yd³
Dimensions are :
We know,

Therefore Length of the prism is 8 yards.
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This is least to greatest
2 2/5 or 2.40
2.45
2 2/3
2 2/5 , 2.45 , 2 2/3
Check out -m-a-t-h-w-a-y-.-c-o-m- (This helps a lot!)
By either long or synthetic division, it's easy to show that

The quartic will be exactly divisible by

when the numerator of the remainder term vanishes, or for those values of

such that

I'm not sure how to count the number of solutions (software tells me it should be 80), but hopefully this is a helpful push in the right direction.
One is a, and the other is just A.
Please give brainliest. Thanks!