Answer:
a answer: so to solve this you need to find the unit rates. you can do this by doing division.
for premade: 3.84/48 = 0.08 per bottle
for mix with water packets: 4.80/64 = 0.075 per ounce
b answer: so to solve this just compare the numbers and see which one is less in value
the mix with water packets is cheaper because 0.075 is less than 0.08
c answer: so since the packets are cheaper, you will multiply 192 x 0.075 to get to price
192 x 0.075 = 14.40
part c also says to figure out how much you are saving, so you need to find the price if you went with the premade and then compare
192 x 0.08 = 15.36
15.36 - 14.40 = 0.96
So you save 96 cents