exam Maths Puzzle Numerical Ability

A rectangle having area 120 square meters has sides of length X+3 meters and x+10 meters. What is the length of a diagonal of the rectangle?

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exam Other Question

Find the greatest common factor for each of the following sets of terms.

12a^3b^2, 18a^2b^3, 6a^4b^4 I am wondering what if an equation had three variables, how would you solve and graph it? Does it change the graph?