Question

Martina begins a dive at sea level. She dives down 20 feet, and then rises 7 feet.

She dives again, going down 9 more feet. How far below sea level is Martina?

Martina is
feet below sea level.

Answer 1

martina is 22 feet below sea level

Explanation:

Marina goes down 20 feet

then rises 7 feet which is 20 - 7 = 13

then goes down 9 more feet which is 13 + 9 = 22 feet

20 - 7 + 9 =22

Martina is 22 feet below sea level.