Janik

puts "Please enter cost"
    cost = gets.chomp.to_f
    puts "Please enter money"
    money = gets.chomp.to_f
    rest = money - cost 
    
    while rest < 0
        puts "You still owe %.2f" % rest
    
    tw,te,f,o,q,d,n,p = 0,0,0,0,0,0,0,0
    
    dollars = (money- cost)
    change = (money - cost - dollar)*100
        
        if dollars >= 20
            tw = dollars/20
            dollars = dollars % 20
        elsif dollars >= 10
            te = dollars/10
            dollars = dollars % 10
        elsif dollars >= 5
            f = dollars/5
            dollars = dollars % 5
        elsif dollars >= 1
            o = dollars
        elsif change >= 25
            q = change/25
            change = change % 25
        elsif change >= 10
            d = change/10
            change = change % 10
        elsif change >= 5
            n = change/5
            change = change % 5
        elsif change >= 1
            p = change 
        end
    final = (money - (cost+tw+te+f+o+q+d+n+p))
    print ("your change is $%.2f: \n
    %.0f twenties \n
    %.0f tens \n
    %.0f fives \n
    %.0f ones \n
    %.0f quarters \n
    %.0f dimes \n
    %.0f nickels \n
    %.0f pennies" % final)
end