What percent of the earth's surface does the ocean cover? a) 21%
b) 50%
c) 75%
d) 78%

The ocean covers more than 70 percent of the surface of our planet. It's hard to imagine, but about 97 percent of the Earth's water can be found in our ocean. Of the tiny percentage that's not in the ocean, about two percent is frozen up in glaciers and ice caps.

Explanation: it is 75%

answer; /// i believe the correct answer is (ku5hite dynasty conquered egypt

(4,-2)

explanation:

6x+4y=16

-6x-9y=-6

-5y=10

y=-2

x=4