For yoko's physical fitness class, she is supposed to do a certain amount of aerobic exercise on her own. which of the following would be the best option?
sit-ups
push-ups
lifting weights
dancing

The answer would be dancing.

Aerobic exercises is also known as cardiovascular exercise. The primary goal of these type of exercises is to get your heart pumping and blood flowing as you do the exercises. Aerobic exercises involves aerobic metabolism which means it is heavily dependent on oxygen. The oxygen stimulates cellular processes to produce energy to enable you to do these exercises.

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.