Since Ms. Louis' daughter eats 9 bags a month and every bag weighs 20 kg you will just need to multiply the number of bags (9) × the weight of the bags (20) to figure out how many kilograms she eats. In this case she eats 180 kilograms of popcorn a month.
The original price of the item is said to be 100 dollars. Now, it offers 15% discount. Let's solve for the dicounted price. => 15% = 0.15 Solution: => 300 * .15 => 45 dollars => 300 dollars - 45 => 255 dollars
