Question

Question #8e64c

Answer 1

`color(red)($900)`

Explanation:

`25` cents `= $1/4`

Filling a `300 " cm"^3` tank at a cost of `$1/4` per `" cm"^3`
would cost `$75` `color(white)("xxxxx")(300xx1/4)`

Filling `12` such tanks would cost
`color(white)("XXX")$75xx12=$900`