Which of these people is most likely to experience stress?

young people. and middle aged because young people could cause of the stress at school not doing their work or bullies and worrying at parents situation such as divorce and their health. middle aged because of their aging skin care and work,bills to pay, kids, school problems from kids, and the way of food

      x/140 = 25/100

we need to find the x to find the x multiply 140 and 25

and what do you get 3500.   and what is 3500 divided by 100

= 35