Answer: 14.4 h
The speed is :

The time it takes to travel 279 miles :

(4,4) are the coordinates of C prime
Assuming that the order is
ok so
distance from greenvile to parker=29
distance from greenvile to hadley=?
distance from hadley to greenvile is 12 and 1/2 less than distance between parker and greenvile means
?=-12 and 1/2+29
add
-12 and 1/2+29=6 and 1/2
?=6 and 1/2 miles
6x + 2 + 4 + 6 + 8 + 10 = 126
6x + 30 = 126
6x = 96
x = 16
Numbers are {16,18,20,*22*,24,26)
Correct answer is 22.