1. which of the following is a physical change? (2 points) an iron chair rusts when left outside a sample of water boils and releases gas. a plant changes carbon dioxide and water into sugar. a newspaper burns when placed in a fire.

i have to report this, it doesn't relate to biology

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.