Question: Tom plants a tree that is 1 year old and 5 feet tall. It gains 3 feet per year. How old is it when it is 23 feet tall?
Answer with step-by-step thinking: It has grown 23 - 5 = 18 feet. So it is 18 / 3 = 6 years older. That means it is 6 + 1 = 7 years old.
So the answer is 7.

Question: The town of Belize has 400 homes. One fourth of the town's homes are white. One fifth of the non-white homes have a fireplace. How many of the non-white homes do not have a fireplace?
Answer with step-by-step thinking: There are 400 / 4 = 100 white homes in Belize. There are 400 - 100 = 300 non - white homes in Belize. There are 300 / 5 = 60 non - white homes that have a fireplace. There are 300 - 60 = 240 non - white homes that do not have a fireplace.
So the answer is 240.

Question: John has to get a new blanket. He decides to have a 7 foot by 8-foot quilt made. The quilt costs $40 per square foot. How much does his quilt cost?
Answer with step-by-step thinking:
The quilt is 7 * 8 = 56 square feet. So it cost 40 * 56 = 2240.
So the answer is 2240.