Can someone pls explain me the attached problem, i dont know how i'm supposed to find the variables, thank u.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

ask the math teacher she or he would know lol.

step-by-step explanation:

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )