The pesticide DDT proved harmful to predatory birds because it O a. caused thinning of the birds' eggshells
O b. caused mutations in the birds' offspring
O c. killed the birds when they ate it
O d. killed animals the birds preyed upon
O e. allowed invasive species to spread

answer; polycythemia is the correct answer;

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.

i am positive it is c. condensing but i may be wrong

i think its the first one