Been programming only 3 days. Sorry for the extreme newbie question but

I am working on a study drill where I am suppose to ask the user for a

money amount and give back 10% of it. So far It looks like it works but

I am having problems when printing out the result. This is what I have

currently.

print “Return amount set at 10%\n”

# prompt user for total amount

print "Enter total amount: "

amount = gets.chomp.to_f

amt_return = amount * 0.10

puts “Your return is: #{amt_return}”

When I type in for example 103.4 the return is 10.3400000002

In the exercises I haven’t got to the point where it teaches this so

I was wondering how can I get it to only show 10.34 and not all the

zeros after it?

Thank you