Answer:
What percentage of pick-up truck drivers want their next vehicle purchase to be another pick-up truck?
Should the speed limit be decreased on the highway connecting two large cities?
How many pedestrians would use a walkway built over a busy road?
Step-by-step explanation:
We use samples when using an entire population is not feasible.
It is not reasonable to ask every pick-up truck driver what they want their next purchase to be; there are too many owners of pick-up trucks. This means we should use a sample.
Many people drive a highway that connects two large cities. It is not reasonable to survey every person that drives it, so we should use a sample.
On a busy road, we may have many pedestrians; this means we should use a sample instead of the entire population.
Answer:
Step-by-step explanation:
1500 - 850 litres = 650 litres
Cost = 650litres * 67.2p/litre *0.95 = 41496p = £41.50 to the nearest p (assuming the p represents pence Sterling)
The 0.95 is because he pays 95% of the basic price (i.e. 5% off)
To find the hourly rate, we can subtract the cost of two hours by the cost of one hour:

So the hourly rate is $40.
Then, to find the initial fee, we subtract the cost of one hour by the hourly rate:

So the initial fee is $15.
The difference of the given fraction is expressed as 
Given the expression:
Take the LCM of the fraction to have:

Hence the difference of the given fraction is expressed as 
Learn more on fractions here; brainly.com/question/78672