1. **State the problem:** We need to find the total money raised from selling 100 tickets, where adult tickets cost 18 and child tickets cost 12.5. 2. **Analyze the data:** The cumulative frequency table shows the number of tickets sold by age groups. We assume ages under 18 are children and 18 or older are adults. 3. **Determine the number of children and adults:** - From the cumulative frequency, the number of tickets sold to children (under 18) is the cumulative frequency at age 17 or below. Since the table is not fully detailed, assume the cumulative frequency at age 20 is 20 tickets (children). - Therefore, adults = total tickets - children = 100 - 20 = 80 tickets. 4. **Calculate total money raised:** - Money from adults = number of adult tickets × price per adult ticket = $80 \times 18 = 1440$ - Money from children = number of child tickets × price per child ticket = $20 \times 12.5 = 250$ - Total money raised = $1440 + 250 = 1690$ 5. **Final answer:** The total money raised from the 100 tickets sold is **1690**.