Trigonometric functions . what is the length of side ad? type the correct answer rounded to the nearest whole number. pls

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning