Q.Yucca tree planted outside
Can yucca plants that I bought in Florida be planted outside in Greenville, SC and survive the cold weather?

This can depend on the cultivator of Yucca that you are growing.
Yucca plants, for the most part, should not be exposed to temperatures below 45 degrees F.
Here are some articles with more information.
https://www.gardeningknowhow.com/ornamental/foliage/yucca/yucca-cold-weather.htm
https://www.gardeningknowhow.com/ornamental/foliage/yucca/growing-yucca-indoors.htm