puts "express gratitude tree times" 3.times{puts "thank you!"} #Express gratitude three times data=1,2,3 puts "print each element x of data=1,2,3" data.each{|x| puts x} #print each element x of data puts "compute squares of array elements[…

puts "how_many_message" def how_many_messages(n) "You have "+n.to_s+(n==1 ? "message." : "messages.") end puts "while loop\n" x=10 while x >=0 do puts x x=x-1 endputs "until loop\n" x=0 until x>10 do puts x x=x+1 endputs "while modifier" x…