Question: Marky owns a computer accessory shop. For this month, half of their sales are wireless mice, one-fourth are optical mice, and the rest are trackball mice. If Marky's shop was able to sell a total of 80 mice, how many of them are trackball mice?
Answer: Step-by-step reasoning process: There were 80 / 2 = 40 wireless mice sold. There were 80 / 4 = 20 optical mice sold. So, there were a total of 40 + 20 = 60 wireless and optical mice sold. Therefore, 80 - 60 = 20 trackball mice were sold this month.
So the answer is 20.

Question: Carrie and her mom go to the mall to buy new clothes for school. Carrie buys 4 shirts, 2 pairs of pants, and 2 jackets. Each shirt costs $8. Each pair of pants costs $18. Each jacket costs $60. If Carrie's mom pays for half of the total cost of all the clothes, how much does Carrie pay for the clothes?
Answer: Step-by-step reasoning process: The total cost of shirts is 4 * $8 = $32. The total cost of pants is 2 * $18 = $36. The total cost of the jackets is 2 * $60 = $120. The total cost of the clothes is $32 + $36 + $120 = $188. Since Carrie's mom pays for half of the total cost, Carrie pays $188 / 2 = $94.
So the answer is 94.

Question: In the park, the first rose bush has 12 red flowers. The second rose bush has 18 pink flowers. The third rose bush has 20 yellow flowers. The fourth rose bush has 8 orange flowers. For her vase, Lorelei picks 50% of the red roses, 50% pink roses, 25% of the yellow roses, and 25% orange roses. How many roses are in her vase?
Answer: Step-by-step reasoning process: The number of red roses Lorelei picks is 12 x 50% = 6 roses. The number of pink roses Lorelei picks is 18 x 50% = 9 roses. The number of yellow roses she picks is 20 x 25% = 5 roses. The number of orange roses she picks is 8 x 25% = 2 roses. The total number of roses in her vase is 6 + 9 + 5 + 2 = 22 roses.
So the answer is 22.

Question: Sadie, Ariana and Sarah are running a relay race. Each part of the race is a different length and covers different terrain. It takes Sadie 2 hours to run through the forest at an average speed of 3 miles per hour. Ariana sprints across the open field on her section at 6 miles per hour for half an hour. If Sarah runs along the beach at four miles per hour and their total time for the race is four and half hours, what is the total distance of the race?
Answer:
Step-by-step reasoning process: Sadie ran for 3 miles / hour * 2 hour = 6 miles. Ariana covered a distance of 6 miles / hour * (1 / 2) hour = 3 miles. Sarah ran for 4.5 hours 2 hours 0.5 hours = 2 hours. In this time, Sarah traveled a distance of 4 miles / hour * 2 hours = 8 miles. The total distance for the race was 6 miles + 3 miles + 8 miles = 17 miles.
So the answer is 17.