Answer:
Option (G)
Step-by-step explanation:
Let the length of the race = a miles
Since, Speed = 
Time taken to cover 'a' miles with the speed = 12 mph,
Time taken '
' = 
Time taken to cover 'a' miles with the speed = 11 mph,
Time taken '
' = 
Since the time taken by David to cover 'a' miles was 10 minutes Or
hours more than the time he expected.
So, 



a = 22 mi
Therefore, distance of the race = 22 mi
Option (G) is the correct option.
I don't think that you put parentheses around any numbers because when I solve it with parentheses between numbers I get other numbers like 16 or 17
Answer:
The slope of the line is 8.
Step-by-step explanation:
The points on the straight line are:
A = (-1, -12)
B = (9, 68)
Compute the slope of the line as follows:


Thus, the slope of the line is 8.
Answer:
174
Step-by-step explanation:
(5*3*2)+(9*3*2)+(5*9*2)