Answer:

Step-by-step explanation:
-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:

Where:
is the standard deviation
is the desired margin of error.
We substitute our given values to calculate the sample size:

Hence, the smallest desired sample size is 23
Answer:


Step-by-step explanation:
As given



As given the expression.


Solving the above


In the decimal form.
= 8.67 (Approx)


$54.91
6.5% of 58.73.
Then minus that amount from 58.73
Mark brainliest please
I think you are asking for help because maybe you are nervous to guess....but really just trust your first answer! and think about it!! you are so smart you can do it;) (cuz smart pple ask qs;))
The constant is -12. I think of constant as the "lonely little number".... Hope this helped =)