A deep-sea diver is in search of coral reefs. He finds a beautiful one at an elevation of -224 feet. While taking pictures of the reef, he catches sight of a manta ray. He swims up 76 feet to check it out. What is the diver's new elevation?

It will cost $540i think

If gravity is one third on mars then weight also one third on mars

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.