Which statement accurately describes dark matter? It is the same as dark energy.
It is well understood by scientists.
It does not emit electromagnetic radiation.
O It can be observed by shifts in red and blue light.

The third one, it can be observed by shifts in red and blue light

3rd one because it is right bule amd red

semidiurnal tides is !

i did this and it was !

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.