Created working toggle_oven method
Complete give_me_seven method by calling multiply method
Set class instance variable
Created adopt method in Zoo class
Fixed incorrect local and instance variable use
Create getter and setter methods
Refactor methods with attr_accessor, attr_reader, and attr_writer
Finished method to add element to end of inputted array
Changed 3rd element in array to all caps
Added method to iterate over an array and  print all elements
Used select method to complete select_higher method
Utilized map mathod to complete greet_everyone method
Finished method to create new empty hash
Created hash with keys and values
Completed update_father_last_name using nested hash
Used nested .each loops to iterate over an array with hashes