exam Maths Puzzle Numerical Ability

What is the perimeter of a rectangle with a width that is 7 feet shorter than its length?

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exam Other Question

I need to find all possible rational roots of the equation

f(x)=3x2-x2+6x-9 adrian purchased 20 ballet tickets for a total of $1110.How much would it have cost him for 150 ballet tickets solve using both the rate and proportion methods