The best option to find the unit price on your own is:
b. Find a convenient and reasonable unit of measurement to use, then divide the cost of the package by the number of units chosen in that package.
By determining the total cost of the package and the total number of units (e.g., ounces, grams, pieces) within that package, you can easily calculate the unit price by dividing the total cost by the number of units. This method provides a clear understanding of the cost per unit, helping you to compare the prices effectively with similar items.