Somebody help me so I can give y’all some points

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

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?

Determine which solution is correct for solving 5/7y=6 reciprocals.