Answer:
The equation for the proportional relationship is y = 2.8x.
If the relationship between two quantities is a proportional relationship, this relationship can be represented by the graph of a straight line through the origin with a slope equal to the unit rate.

Let's solve for x:
100x=1000
Divide by 100
x=10
You should expect to win 10 times.
Disagree.
b/8 = 56; multiply both sides by 8 to solve for b, and you get b = 448
The distance from San Francisco to New York is 4140 km. Since the question asks how long it took the Humphrey family in km/hr (kilometers per hour), you would just divide 4140km by 6.
Why? Because it took them 6 hours to make a trip of 4140 km. Dividing 4140 by 6 gives you the distance they traveled per hour.
690 km/hr