Answer: toss
Step-by-step explanation:
buoy you would spend 4.80 for 160 rolls
toss you would spend 6.00 for 300 rolls
mop ups you would spend 7.20 for 120 rolls
waves you spend 12.50 for 250
if you times these by 2 or any other number the answer will always be toss
Have a great day!