How many houses have been remodeled?

Hints:

Greate a new column to represent the age of the remodel by subtracting Yearbuilt from Yeariemodidd.

Print out the number of rows where the new column does not equal $0.$

$[119]$ # Answer here

houses $[\text{'}$Remodelage: $=$

houses $[$YearRemodAdd$\text{'}$J $-$

houses $[\text{'}$YearBuilt$\text{'}]$

# Print out the number of rows where the remodel age is not equal to $0$ remodeled$\_$count $=$ len$($houses $[$houses $[\text{'}$RemodelAge$\text{'}$