Answer: 6 fewer than a number
Pretty sure mean for all of them because that is the calculated average.
Answer:
14 
Step-by-step explanation:
rectangular volume = length * height * width
1354 = (20+4) * 4 * width
1354 = 24 * 4 *w
1354 = 96w
14.1 = w
-10-a/-4-(-2) = 8
-10-a / -2 = 8
-10 - a = -16
-a = -6
a=6