Answer:
45.3 miles/h
Hope this will help you
Step-by-step explanation:
Answer:
Option b
or 
Step-by-step explanation:
The absolute value is a function that transforms any value x into a positive number.
Therefore, for the function
x> 0 for all real numbers.
Then the equation:
has two cases
if
(i)
if
(ii)
We solve the case (i)

We solve the case (ii)

Then the solution is:
or 
For one moth it would be....

$57.00 In total but im not sure if this is correct so if you could make sure please.
The conclusion is valid
it is a systematic random sample
and the second one is a line graph (I think)