Respiratory is produced by inadequate excretion of CO2 with inadequate ventilation, resulting in elevated plasma CO2 and increased levels of carbonic acid.

acidosis

Explanation:

Respiratory acidosis is caused due to hypoventilation because of which gas exchange process is hindered. As a result CO2 produced in body is not excreted adequately and it starts to accumulate. Its concentration in plasma increases and it combines with water molecules in plasma to form carbonic acid. Carbonic acid drops the pH of the blood and thus acidic environment is created. Since this event is a product of faulty respiratory mechanism, it is called respiratory acidosis.  

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.