[Question]: Sammy has 8 gifts to wrap. Each gift requires 1.5 meters of ribbon. Unfortunately, she has no available ribbon so Tom let her use his 15-meter long ribbon. How many meters of ribbon will be left from Tom's ribbon?
[Answer]: The eight gifts require 1.5 meters / gift x 8 gifts = 12 meters of ribbon. So, Tom will be left with 15 meters - 12 meters = 3 meters of ribbon.
So the answer is 3.

[Question]: Jenna is making a costume for her role in Oliver Twist. She needs to make an overskirt and two petticoats. Each skirt uses a rectangle of material that measures 12 feet by 4 feet. She also needs to make a bodice that uses 2 square feet of material for the shirt and 5 square feet of fabric for each of the sleeves. If the material she uses costs $3 per square foot, how much does she spend on the material in total?
[Answer]: First find the amount of material needed for one skirt: 12 feet * 4 feet = 48 square feet. Then multiply that number by the number of skirts to find the total material used on the skirts: 48 square feet / skirt * 3 skirts = 144 square feet. Then find the total amount of material she uses for the sleeves: 5 square feet / sleeve * 2 sleeves = 10 square feet. Then add the amount of material she uses for each part of the dress to find the total amount of material: 10 square feet + 144 square feet + 2 square feet = 156 square feet. Then multiply the total amount of material by the cost per square foot to find the total cost: 156 square feet * $3 / square foot = $468.
So the answer is 468.

[Question]: Of the 90 people on William's bus, 3/5 were Dutch. Of the 1/2 of the Dutch who were also American, 1/3 got window seats. What's the number of Dutch Americans who sat at the windows?
[Answer]:
On the bus, the number of Dutch people was 3 / 5 of the total number, a total of 3 / 5 * 90 = 54 people. Out of the 54 people who were Dutch, 1 / 2 were Dutch Americans, a total of 1 / 2 * 54 = 27 people. If 1 / 3 of the passengers on the bus identifying as Dutch Americans sat at the windows, their number is 1 / 3 * 27 = 9.
So the answer is 9.