Knowing that your area is:

you can find the radius as:

;
With this you can evaluate the circumference as:
Answer:
o -1/2
Step-by-step explanation:
Slope is the ratio of rise/run.
We the line passes through (0,3) and (6,0)
Rise = y2 - y1 = 0 - 3 = -3
Run = x2 - x1 = 6 - 0 = 6
Slope = -3/6 = -1/2
Combine like terms you add -10x and 3x which is -7x-4
4 kilometres is 4000 meters
4000 meters - 3400 meters = 600 meters
and as John is the one that rode 4 kilometres he rode further and by 600 meters
B. 82 because complementary angles equal 90˚ combined and 90-8=82