exam Maths Puzzle Numerical Ability

This is Transforming equations again. I solved this problem as well and got x=15. Having a difficult time cheacking it. Please help, Thank you=)

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exam Other Question

Plot the graphs of the following functions. Submit the graphs to the dropbox along with your response.

f(x)=6x Please help me with this problem.

There are two companies that sell widgets. Both companies sell the widgets to the general public for the same price. In order to earn business,