Which of these BEST describes the formation of earth a. earth was formed when Jupiter, the largest planet split into smaller pieces during its formation
b. earth was formed from a cloud of gas and dust spinning and moving some distance from the sun.
c. earth was formed from the collision of multiple asteroids. the asteroids merged into a planet.
d. earth was formed when a piece of the sun broke off the star as it was forming

b. earth was formed from a cloud of gas and dust spinning and moving some distance from the sun.

it always confuses me when i see it

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.