If the mode is 8, then 8 actually shows up in the data set. This is not true of 7 or 5.
R<span> = √(2² + 5²) = √29 = 5 and change. Simple Pythagorean calc. Draw a picture and you will see it.</span>
The distance formula between the line is:

Thus,the distance of the above:

The answer is 6.4 units.
Hope it helps!
60% of trip = 45 miles
let total trip distance = <u />

60% is given by multiplying by
0.6
So;

The answer is D because 48*8= 384 and 54*9=418 add 384 and 418 the answer is 870.