Add all of the numbers tougher and that will give you your answer
Answer: -1.55
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Sample size : 
Sample mean : 
The test statistic for the population mean is given by :-


Hence, the value of z statistic = -1.55
Answer:
$7,000
Step-by-step explanation:
Let
equal the original price.

Combine like terms.

Divide by the coefficient of
, which in this case is 

If you like the variable on the left, rewrite:

Formula is 2(wl+hl+hw)
2[(7x20)+(15x20)+(15x7)]
=1090 cm^2