Which of the following terms is the most complex? aoms, molecules, organ, organ system, cells

The most complex is organ system

Explanation:

This is because it includes atoms and molecules and organs etc. and the largest level organization.

I think the most complex term is atoms.

Explanation:

I think this because atoms help make molecules in your body, witch make up matter.

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.