exam Maths Puzzle Numerical Ability

Alice sells lamps at craft fairs. she uses the function F(x)=25x-250 to project her profit for selling x lamps. How would I graph this function and identify the slope and y-intercept.

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if h(x)=X3 andg(x)=1/x+5 find(g(x)) and g(h(x)) An art dealer sold two artworks for $1520 therby making a profit of 25% on the first work and 10% profit on the other, whereas if he approached any exhibition he would have sold th