Answer:
15 gallons
Step-by-step explanation:
Hope it helps. :)
In all poe ate 2/3 of the left overs

Explanation
Step 1
the density of an object is given by:

Step 2
let

Step 3
replace,

I hope this helps you
Do 3 divided by 53 to find the cost of one ticket and then multiply the that number with 7