A carbon filter is used by a scientist to filter out small particles of soil and rocks from a water sample taken from a stream. The exponential function f(x) = 500(0.35) can
be used to model the function. Which of the following could be represented by the
value 500 in the function rule:

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d