Answer:
A
Step-by-step explanation:
-4u - w = u + 6w
-4u = u + 7w (Add w to both sides)
-5u = 7w (Subtract u from both sides)
w =
(Divide both sides by 7)
Answer:
B
Step-by-step explanation:
No, not all of these questions are statistical.
The first question does Mary like snacks is a Yes or No question which doesn't provide any statistics.
Answer:
28
Step-by-step explanation:
20+26+26 = 72
to get the mean of four numbers means
(x+x+x+x) / 4 = 25
so
100-72=28