Answer:
<h2>k = 7</h2>
Step-by-step explanation:

Since 6x6 equals 36, then 6² would be the exponent because 6² is the same as 6x6
Your answer is xy-1<span><span>
</span></span><span>=<span><span><span><span>4<span>x2</span></span><span>y2</span></span>−<span><span>4x</span>y/</span></span><span><span>4x</span>y
</span></span></span><span>=<span><span><span><span>4x</span>y</span>−4/</span>4
</span></span><span>=<span><span>xy</span>−<span>1
</span></span></span>Hope this helps!
The answer is 89.14. 624:27