A cross is made between two parents, both with genotype Aa. What is the probability that an offspring will have the genotype aa?
O 1/8
O 1/4
O 1/2
O 3/4

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.

b is the answer and if you need further with anything message me