What’s the final volume of a gas with an infill volume of 75 ml if the pressure decreases from 300 lap to 200 kpa

Use the equation P1V1 = P2V2 (volume must me in liters and P1 and P2 must be in same unit) I have never heard of the unit ‘lap’ to measure pressure, but are you aware of its conversion to kpa?

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.