Question

How many `"millilitres"` in a volume of `0.046*"gallons"?`

Answer 1

Well first you have got to specify `"US"` or `"Imperial Gallons"`. I am guessing you use a `"US Gallon"` `-=` `3.7854*L`

Explanation:

And thus,

`0.046*cancel"gallons"xx3.7854*cancelL*cancel"gallon"^-1xx1000*mL*cancelL^-1` `~=` `175*mL`.

On the other hand, the `"Imperial Gallon"` `-=` `4.546*L`.