Level 3
Dennis saved some money on the first week. Each following week, he managed to save $8 more than the week before. He saved a total of $100 after 4 weeks. How much money did he save on the 3rd week?
Level 3
The number of people who visited the museum triples every week. A total of 1674 people visited the museum on the 3rd week of the month. How many people visited the museum on the first week of the month?