Answer:
1110
Step-by-step explanation:
Answer:
D. $70
Step-by-step explanation:
you can first think that the first tree is $25 plus the nine trees for 5 dollars so
5x9=45
45+25=70
Hope this helps :D
Answer: t = 1.9287
Step-by-step explanation:
Let
be the average number of pages should be sent by 2-day mail instead.
As per given we have,

Sample mean : 
Sample standard deviation : s=3.81
sample size : n= 24
Since , the sample size is less than 30 and populations standard deviation is unknown , so we use t-test.
The test statistic for population mean :-


Hence, the test statistics : t = 1.9287
Answer:
25
Step-by-step explanation: