Answer:
500 milliliters
Step-by-step explanation:
im pretty sure it would be a.
55x3 = 165, and 12x would mean the money times the amount of used he bought. so therefore it is a.
3/4n=1 3/4n-18
3/4n=7/4n-18
3/4n-7/4n=7/4n-18-7/4n
-n=-18
-n/-1=-18/-1
<u><em>N=18</em></u>
