not totally sure what you mean by explain the mean of 0, however
250 attendees = +250 from zero
loses 7 = -7 from zero
Deposit 55 = + 55 from zero
Drop 9 = -9 from zero
Austin = +425 from zero
Answer:
The expression for two times the difference of 4 and a number is

Step-by-step explanation:
To Find:
Write an expression for Eight times the difference of 4 and a number.
Solution:
Let the Unknown number be 'd'
Difference of 4 and d = ( 4 - d )
So One Time Difference of 4 and d = 1× ( 4 - d )
∴ Two Times Difference of 4 and d = 2× ( 4 - d )
∴ Eight Times Difference of 4 and d = 8× ( 4 - d )
The expression for Eight times the difference of 4 and d. will be

The expression for Eight times the difference of 4 and a number is

Answer:
10.5
Step-by-step explanation:
0.25 x 14 = 0.5 x (0.5 x 14) = 0.5 x 7 = 3.5
<em>14 - 3.5 = 10.5</em>
D is the answer because of delta y over delta x
Answer:
0.70
Step-by-step explanation:
It is 0.70 because you multiply 7 x 10 and that is 70 then you just put 0. in front of it