Look at the energy pyramid below , energy flows from - ( NEED HELP ASAP )

energy flows upwards!

Explanation:

energy starts from the sun, which gives energy to the producers, which gives energy to consumers. only 10% of the energy is passed along through each transfer.

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.

the real answer is b. scintillation counter