Acar travels from city a to city b to the east. it takes 2 hours, and the road mileage is 100 miles. the map shows that the cities are only 80 miles apart (straight-line distance). calculate the average velocity.

average velocity is 50 mph.

Step-by-step explanation:

Information on the basis of question that distance between the City A and City B  is 100 miles . But information about map distance is nothing to do with question .It is extra information.

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last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

i can't see the picture : /