Well I need more details for x can you screenshot? It’s usually x*0.20 but I need more details to help you
Probability=13/52*12/51*11/50*10/49=11/4165
3 over 20 is the fraction in simplest form.
The anwser is 5x-3 because you remove the parentheses and pair like terms
= x1 + x2/2 , y1 + y2/2
= 7+-1/2 , 1+(-1)/2
Midpoint = (3,0)
