exam Maths Puzzle Numerical Ability

PLEASE HELP

The lenght of a rectangle is 1ft more then twice its width, and the area of the rectangle is 45ft^2. I am trying to find the diensions of the rectangle.
Length _____ft
Width _____ft

THANK YOU IN ADVANCE

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exam Other Question

The position vector of the points A,B,C are i+j+k,i+5j-k and 2i+3j+5k,
respectively.The greatest angle of the triangle ABC is
(a) 135 (b)90
log3(x^2-1)=1

hint:3 is a subscript
solve for x