uhm i think its 15 cause you just add them all i guess
7/10 is your correct answer
It has 1 solution i believe
No because the sides are different if they were the same they would be a right triangle
I am only guessing that you mean:
(n-2)/-3<7 if so, multiply both sides by -3 (and reverse the direction of the inequality sign because of negative mulitplication!)
n-2>-21 add 2 to both sides
n>-19
