To calculate the discount of the snorkeling set we have to multiply the selling price ($60) with the discount value (35 %) and divide it by 100 % to eliminate the percentage units. This is:
Having this we can calculate the discount value, that is $21.
ok so divide 1500 by 250 to determine how many boxes you need to by in 1 year
so that equals 6 then you multiply that by $30 to find the total cost of all the diapers per year so the is $180 per year and then multiply that by 3 to find the cost of all 3 years