Each box contains 40candy bars Each box cost $30
How much does the school have to charge for, each candy bar to make a profit $10 per box

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