exam Maths Puzzle Numerical Ability

Simplify:
((3x(^2)y)^2)/ (9^-1)(x^-4y^6)^-2

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exam Other Question

A square-shaped picture measures 5 1/2inches along each edge. what is are of the picture? for each function as definied that is one=to=one,
(a) write an equation for the inverse funtion inthe form y=f-1(x)
(b) graph f and f-1 on the same axes and
(c) give the domai