Number of satisfying assignments
You have 8 options:

T F F

T T F

T T T

F T T

F F T

F F F

T F T

F T F

When the first column is x1 the second is x2 and the third x3

Lets try each one:
(T or T or T)and(T or F)and(F or T)=T and T and T=T

(T or F or T)and(T or T)and(F or F)=F
And so on...

You can continue from here and you will get the right answer