-4-4-4+9 = -3
so, they wound up with a loss of 3 yards
or, 3(-4)+9 = -3
for the sub, you want
-125 + 3(-50) = -125-150 = -275
Your setup yields -125(-150) = 18750 ft in the air!
220-4(35)
or, 220+4(-35)
Your final answer is correct, though, which shows that you not only don't know how to set up the expression, you do not know how to evaluate it once written!
You have an extra minus sign.