All of the following would employ ocean engineers except
a the military
b coastal regions
c weather services
d scuba gear

C

Explanation:

Ocean engineers deal with marine infrastructure. They collaborate with other professions such as marine biologists. Unlike oceanographers who study natural phenomenons in the oceans, ocean engineers are significant in developing artificial man-made structures in the oceans such as oil rigs.  

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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