exam Maths Puzzle Numerical Ability

Please help! This has me stumped. I think this is a logarithm problem.
Find the integer k such that 270k is a perfect square.

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exam Other Question

hey i need some help on how to graph these!
if you can help thanks! PLEASE.

Graph the equation :

y= -3
Rewrite the equation y = print_coeff(m,1)x print_const(b) as a function of x.