Answer: x = -4
Step-by-step explanation:
so, we first move the terms.
-4x = -4 + 20
then, we just calculate that.
-4x = 16
finally, simply divide both sides.
x = -4
Answer:
21.99
This is simple just times 3.14 and 7 to get 21.99
it would come out to $4.40
the mean is $80