I added pics cause it’s 2 in the morning.. I’m having back pain, thigh pain, cramps EVERYWHERE.. headache and just finished babysitting my baby brother.. help a gurl out please

Answer:
[tex]\frac{1}{4^2}[/tex]
Step-by-step explanation:
[tex]4^6*4^{-8}\\\\=\frac{4^6}{4^{8} }\\\\ =4^{-2} \\\\=\frac{1}{4^2}[/tex]