#Replace with code to create new split columns for 'Amount$\_$Eat' and 'Unit' from the 'Amount' column, updating column names and delimiter type

df$[[\text{'}$Amount$\_$Eat', 'Unit'$]]=$ df$[\text{'}$Amount$\text{'}].$str$.$split$(\text{'}\_\text{'},$ expand $=$ True$)$ # split based on $\_$ delimeter

#Replace with code to drop 'Amount' column

df $=$ df$.$drop$($columns $=[\text{'}$Amount$\text{'}])$ # drop a column

#Replace with code to show header of dataframe

df$.$head$()$