A fish tank is 28 inches tall and has a base that is 17 inches by 21 inches. You want to fill the tank to a depth of 26 inches. How much water will it take?
The base will remain constant while the height changes, so therefore
let $d$ equal the depth of the water filled in the tank
$17*21*[d]$
take it from here
genaleech ....please don't post the same question multiple times......you posted this one THREE times....and someone else posted it too.