The graphs shows the amount of a chemical in a water
sample at different times after it was first measured.
Select all statements that are true.

(Select all that apply)

A) The amount of the chemical in the water sample is
decreasing exponentially

B) The amount of the chemical in the water sample is not
decreasing exponentially.

C) It is not possible to tell for certain whether or not the amount
of the chemical is decreasing exponentially.

D) When it was first measured, there were 2,000 mg of the
chemical in the water sample.

E) After 4 hours, there were 100 mg of the chemical in the
water.