(6^-4)^-9/ 6^6 in simple form 30 points

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test