Homework Help: calculus

Posted by confused--please help on Thursday, December 13, 2012 at 7:48pm.

for the given functions f&g, find the following and state the domain of each result.
f(x)=5x+4/7x-8; g(x)=2x/7x-8

a.(f+g)(x)= ?
what is the domain?
b. (f/g)(x)= ?
what is the domain?

Please show work

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