There are 245 boys and 260 girls in a school, write ratio of boys to girls in its simplist form

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?