The horizontal distance from A to the point = 3/10 * 14 = 4.2, so the c coordinate of the point is -3+ 4.2
= 1.2.
Vertical distance = 3/10 * 12 = 3.6
So the y coordinate = -5+ 3.6
= -1.4.
Answer is (1.2, -1.4)
3.
If c= 6/7, you substitute c for 6/7 in the equation (54/21)/c. And you are left with 3.
The chances would be (if you cant get duplicates)
1/6
1/5
1/4
If you want the states in order
You multiply them together
6 x 5 x 4 = 1/120 chance to get them in that order