Answer the following question.
There are 50 passengers on a bus. At the first stop, 16 more passengers get on the bus. On the other stops, 22 passengers get off the bus and 5 passengers more get on the bus. How many passengers are there on the bus in total at the last station?
Step-by-step reasoning process: There are 50 + 16 = 66 passengers at first. Then 66 - 22 = 44 passengers remain. Since 5 more passengers get on the bus there are 44 + 5 = 49 passengers on the bus.
The answer is 49.

Answer the following question.
There are 20 cars lined up at a race. Each of the cars have 2 passengers and a driver, then when the cars go past the race's halfway point, each car gains another passenger. The cars then continue racing, and the race finishes once every single car has passed the finish line. People who get into the cars have to stay inside of them until the race is finished. How many people are in the cars by the end of the race?
Step-by-step reasoning process: There are 2 passengers and a driver in each car, which means that in each car there are 2 passengers + 1 driver = 3 people. This means there are a total of 20 cars * 3 people per car = 60 people in the car at the start of the race. At the halfway point, there is an additional 20 cars * 1 additional passenger = 20 more people. So be the end of the race, there are 60 people at the start of the race + 20 additional people = 80 people in the cars.
The answer is 80.

Answer the following question.
Megan pays $16 for a shirt that costs $22 before sales. What is the amount of the discount?
Step-by-step reasoning process: Let x be the amount of the discount. We have, 22 - x = $16. We change the writing of the equation:. 22 - x + x = 16 + x. So, 22 = 16 + x. We then Remove 16 from both sides:. 22 - 16 = 16 + x - 16. So, 22 - 16 = x. So, the amount of the discount is x = $6.
The answer is 6.

Answer the following question.
Janet buys 45-pound containers of cat litter for $21 each. If her cat litter box holds 15 pounds of cat litter, and she changes out the litter weekly, how much will it cost, in dollars, for her to buy enough litter to last 210 days?
Step-by-step reasoning process: If she changes the box weekly, then in 210 days, she will change the box 210 / 7 = 30 times. At 15 pounds of litter for every box change, she will require 30 * 15 = 450 pounds of cat litter in 210 days. If she buys 45 - pound containers, then for 450 pounds she will need to buy 450 / 45 = 10 containers of litter. At $21 per container, to buy enough cat litter for 210 days, it will cost 10 * $21 = $210.
The answer is 210.