The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 5. Approximately what percent of the trees are between 20 and 30 years old?

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0