Answer:
The minimum score is 28.
Step-by-step explanation:
(95+54+98+81+2x)/6>64
(328+2x)/6>64
328+2x>384
2x>384-328
2x>56
x>28
-2 (x + 3z) + 4x - 3y + 2z
-2x-6x+4x-3y+2z
2x-4z-3y
hope it helps...
have a nice day!
x^2 = 81/100
Let's take the square root of each side
x = 0.9 and -0.9
it affected more than half