Final answer:
To determine how many milliliters are in a gallon of milk, multiply the number of fluid ounces in a gallon (128) by the number of milliliters in one fluid ounce (30), which equals 3,840 milliliters.
Step-by-step explanation:
The question is asking how many milliliters are in a gallon of milk if there are 128 fluid ounces in that gallon and we know that there are about 30 milliliters in 1 fluid ounce. To find the total number of milliliters, we need to multiply the number of fluid ounces by the number of milliliters per fluid ounce, which is a unit conversion from ounces to milliliters.
- First, we establish that 1 fluid ounce is equivalent to 30 milliliters.
- Next, since we have 128 fluid ounces in a gallon, we multiply 128 by 30 to find the total milliliters.
- 128 fluid ounces * 30 milliliters/fluid ounce = 3,840 milliliters.
Therefore, the correct answer is (a) 3,840 milliliters.