The thickness of DNA is about 3 * 10-9 meter. The thickness of the smallest thing visible to the naked eye is 1* 10-4.
Compare the thickness of DNA to the smallest thing visible to the naked eye.

The smallest thing is visible to the naked eye is 1/3x10^5 times as thick as DNA.

The thickness of DNA is 3x10^-5 of the thickness of the smallest thing visible to the naked eye.

Step-by-step explanation:

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !