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f(g(x)) = x f(g(x)) = x and g(f(x)) = –x f(g(x)) = g(f(x) f(g(x)) = x and g(f(x)) = x

There is also another question like it that I don't know.   Write the equation of h(x) if h is the image of the basic absolute value function after a reflection across the x-axis...

A truck can be rented from Company A for \$120 a day plus .40 per mile. Company B charges \$40 a day plus .60 per mile to rent the same truck. how many miles must be driven in a day to make the rental...

A new photocopier works 5 times as fast as an old one. when the machines work together, a university can produce all its staff manuals in 30hr. find the time it would take each machine, working alone,...

What rate of interest compounded semiannually is required to triple an investment in 30 years? Write your answer as a percent and round to nearest cents.

I was able to get it to 3p^2-3pq, but I do not understand how to simplify. If possible, please add working out because am unsure of how to simplify.

Alexis and Katy are both traveling to Europe this summer, but Alexis is going to Spain and Katy is going to France. Round trip flights to Spain are \$820, and round trip flights to France are \$1,205...