exam Maths Puzzle Numerical Ability

A plumber needs 3 times as much solid pipe as perforated pipe to lay a drain line 200 feet long. How much solid pipe is needed?

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exam Other Question

Form the following:

a linear equation in one variable
a linear equation in two variables

Plot the graph
Please help me with this:
It asks to have the inequality solved and to state and graph the solution set???
x/x-3<=-8/x-6 HELP PLEASE!!!