book Maths Puzzle Numerical Ability

Let f(x) = 2x + 1 and g(x) = x^2 - 4 and find the following:

(fg)(x)

(g of f)(x)

Read Solution (Total 0)

book Other Question

When Fritz drives to work his trip takes 36 minutes, but when he takes the train it takes 20 minutes. Find the distance Fritz travels to work if the train travels an average of 32 Solve the following system of linear inequalities by graphing.
3x - y < 2 and x + y > 2

I can come up with several solution sets for both, but none for a consistent system. Any suggestions?