Question

The world-wide sea level has risen 22.75 mm in the past 6.5 years. At this rate, how much higher will the level be 8 years from now?

Answer 1

it would be 28 mm in 8 years

Answer 2

22.75/6.5 = 3.5
The sea level rises 3.5 mm every year.

8 • 3.5 = 28
The world-wide sea level will be 28 mm higher 8 years from now.