Answer this question:Cape May and Daytona Beach have 40 shark sightings a year. If Cape May has 8 less than double the number of shark sightings of Daytona Beach, how many shark sightings does Cape May have?
Let x be the number of sharks in Daytona Beach. Cape May has 2x - 8 shark sightings. x + (2x - 8) = 40. 3x - 8 = 40. 3x = 48. x = 16. Cape May has 2(16) - 8 = 24 shark sightings.
The answer is 24.

Answer this question:Milena is 7 years old, and her grandmother is 9 times older than her. Milena's grandfather is two years older than her grandmother. What is the age difference between Milena and her grandfather?
Milena's grandmother is 7 * 9 = 63 years old. Her grandfather is 63 + 2 = 65 years old. So the age difference between Milena and her grandfather is 65 - 7 = 58 years.
The answer is 58.

Answer this question:A pickup truck can fill 20 eight gallon water cans (each can filled three quarters of its capacity) in three hours. If each can is filled to full capacity instead, how long, in hours, will it take to fill 25 cans?
Each can is filled with 8 / 4 * 3 = 6 gallons of water. A total of 6 * 20 = 120 gallons of water is filled in 3 hours. In 1 hour, 120 / 3 = 40 gallons of water is filled. 25 full cans can hold 25 * 8 = 200 gallons of water. It will take 200 / 40 = 5 hours to fill 25 cans to full capacity.
The answer is 5.

Answer this question:There were 18 students assigned in a minibus for a field trip. Eight of these students were boys. On the day of the field trip, the number of girls and boys was the same since some of the girls were not able to join the trip. How many girls were not able to join the field trip?
8 boys + 8 girls = 16 students joined the field trip. Thus, 18 - 16 = 2 girls were not able to join the field trip.
The answer is 2.