2. Find the unit rate demonstrated in the graph below.
30
27
24
21
18
Distance (Miles)
15
12
9
6 3
1 2 3 4 5 6 7 8 9 10
Time (Hours)
A. 9 miles per hour
B. 4.5 miles per hour
C. 3 miles per hour
D. 1.5 miles per hour

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

How to do this , and can some one explain

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up