Which statement is true? a
The Andes Mountains stretch along the eastern coast of South America?
b
The River Basin is a place where few types vegetation grow.
c
The River Basin is the largest river basin in the world.

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6