Jared is taking diving lessons and starts 20 feet below sea level. He then dives down another 10 feet. From there, he goes up 15 feet. Which equation shows Jared's current level?

Well you would start out with - 20feet then go down 10 more feet giving you - 30 then go up 15 feet giving you - 15 feet below sea level. So the equation would be - 20 feet + - 10 = - 30 + 15 equals - 15