exam Maths Puzzle Numerical Ability

I am not understanding how to work this problem out.

Area of a Parallelogram. Find a trinomial that represents the area of a parallelogram whose base is 2x + 3 meters.

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exam Other Question

Solve the equation abx=cy for each of the following

the variable x





the variable a






the variable c PLEASE HELP ME I AM JUST CONFUSED?!?!?!?!
After losing 30 pounds, an individual weights 110 pound more than 1/3 his previous weight . Find the previous weight of the individual.
I tried X/1/3 + 110