Answer:
1.33 (round it up to the nearest dollar which is 1)
Step-by-step explanation:
profit = price charged - cost of goods
$10 = ? - $30
$ 30 = for one box
40 bars = one box
40 / 30 = 1.33 (round it up to the nearest dollar)
you can check this out by:
1 x 40 bars = 40
40 - 30 (the price of each box) = 10