The normal distribution curve for the problem is shown below
We need to standardise the value X=405.5 by using the formula


We now need to find the probability of z=0.32 by reading the z-table
Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:

from the z-table, the reading

gives 0.6255
hence,

The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%
The answer would be ( x+1, y+4)...... Hope this helps
Substituting m for 9
h(9) = 9^2 - 3*9
h(9) = 81 -27
h(9) = 54
Third option!
To acquire a given product. Insofar as the amount people are prepared to pay for a product represents its value, price is also a measure of value.
Answer:
The average speed of Sebastian is 3 miles per hour.
<u>Solution:</u>
Given, In
hours, Sebastian can walk 4 1/2 miles.
we have to find What is his average speed in hours per mile
We know that, average speed 
In our problem, total distance travelled = 

Now, average speed of Sebastian 
Hence, the average speed of Sebastian is 3 miles per hour.