exam Maths Puzzle Numerical Ability

log3(x^2-1)=1

hint:3 is a subscript
solve for x

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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 A piece of land measures 3 3/4 acres and is for sale at
$60,000. What is the price per acre?