3 is the total dollars 1 magazine cost
4 is the total of paperback books she bought
5 is the total dollars 1 paperback book cost
multiply 4 by 5 to get total cost of the 4 paperback books and add 3 of the total cost of the magazine to get the total cost of everything
It is congruent because the two shapes have the same length.
Can u give us more information please
Answer:
The value of the test statistic is 
Step-by-step explanation:
The formula for the test statistic is:

In which X is the statistic,
is the mean,
is the standard deviation and n is the number of observations.
In this problem, we have that:

So



The value of the test statistic is 