Which ocean contacts only one continent?

a) indian

b) southern

c) arctic

d) pacific

B) Southern

Explanation:

Most of the oceans contact multiple continents. The Pacific and Atlantic oceans both contact four continents. The Arctic and Indian oceans both contact 3 continents. The Southern ocean is the only ocean to contact just one continent - Antarctica.

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.