Carbon-14 is an element that loses about 10% of its mass every millennium (i. e., 1000 years). A sample of Carbon-14 has 600 grams.
Write a function that gives the sample's mass in grams, S(t), t millennia from today.

answer: i think it's a

step-by-step explanation:

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.

the answer to that one is b