Which provides long-term energy storage?

glycogen, because it is a polysaccharide

glucagon, because it is a complex protein

glucose, because it is a monosaccharide

cellulose, because it is a complex carbohydrate

i don't know what the picture looks like but i can take a guess and say maybe basidiomycetes?

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.