Answer:
84
Step-by-step explanation:
The sum of the differences of the current scores from average is ...
(84 -85) +(92 -85) +(71-85) +(94 -85) = -1 +7 -14 +9 = 1
So, to make the total of all differences from average be zero, Steve must get a score of 85 -1 = 84 on his 5th test.
6
I did the work but like where did that cube go lol
40200
(8x7x6x5x4x3x2x1) - (5x4x3x2x1)
Or simply plug 8! - 5! into the calc.
-x - y = -3
-2x + y = -6
-3x = -9
x = 3
3 + y = 3
y = 0
(3,0)
