Answer:
21
Step-by-step explanation:
at 1080 ML per day for 7 days, the patent would have to invest 1080×7=7560ML
since the can capacity is given in OZ we have to convert both values to the same units.
1ML:0.033814 FL OZ
therefore,7560 ML=7560 ML×0.033814 FL oz=255.634OZ
since each can holds 12 OZ, the # of cans=255.634/12=21.3
the closest is 21 cans