A stand was selling 8 mangos for 10 dollars at a farmer's market.

Kisha said, " That mean we can write the ratio 10:8 ,or $1.25 per mango."

Luis said, " I thought we had to write the ratio 8:10 ,or 0.8 mangos per dollar."

Who is correct ,and why? Can we write more then one ratio for this situation? Explain why or why not.