Cameron guides tour groups in a museum. He usually answers two questions per tourist. Today, he did four tours. The early morning first group was only 6 people. The following group was a busy group of 11. The third group had 8 people, but one was inquisitive and asked three times as many questions as usual. The last group of the day was a late group of 7. How many questions did Cameron answer? Give the rationale and then the answer.
Let's think step by step. Cameron answered 2 * 6 = 12 questions for the first group. He answered 2 * 11 = 22 questions for the second group. The third group had 8 - 1 = 7 tourists that asked 2 questions each. The third group also had 1 tourist that asked 2 * 3 = 6 questions. Thus, the third group asked 7 * 2 + 6 = 14 + 6 = 20 questions. The last group asked 7 * 2 = 14 questions. For all four tours, Cameron answered 12 + 22 + 20 + 14 = 68 questions.. The answer is: 68.

John buys game loot boxes for $5 each. The average value of items inside is $3.5.  He spends $40 on loot boxes. What is the average amount he lost? Give the rationale and then the answer.
Let's think step by step. He bought 40 / 5 = 8 boxes. He loses an average of 5 - 3.5 = $1.50 per box. So he loses an average of 1.5 * 8 = $12.. The answer is: 12.

The area of square A is 25. The area of square B is 81. What's the length difference between the sides of square A and B? Give the rationale and then the answer.
Let's think step by step. The area of a square is calculated as length * width. Because all a square has all sides equal then we can say that given a side S, the area is S * S. For square A of sides A, the area is A * A = 25 or A^2 = 25. Solving for A we know that A = 5. For square B of sides B, the area is B * B = 81 or B^2 = 81. Solving for B we know that B = 9. The side difference between A and B is 9 - 5 = 4.. The answer is: 4.