(Sorry if I'm wrong just taking a shot at it)
For 5/45... 2.5/22.5, 10/90, 20/180. ^
For 3/5... 6/10, 12/20, 24/40 ^
The question is an example of a ratio problem. This implies that

Therefore, le the number of domestic vehicles be x. We can say that;

Answer: 1458
The slope-intercept form:

m - slope
b - y-intercept
We have m = 2 and b = 3. Substitute:

Answer:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Step-by-step explanation:
Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:
Where
and
We have the following info from a sample of n =37:
the sample mean
And we want to find the following probability:

And we can use the z score formula given by;

And if we find the z score for the value of 0.872 we got:

And we can find this probability to find the answer:

And using the normal standar table or excel we got:

Answer:
<h3>
d = 6</h3>
Step-by-step explanation:
