Week-4.rb

#### 1. Use Ruby to loop over this array, multiplying each element by 2.

tempArray = [1, 2, 6, 9, 3, 21]

# your ruby loop here

#### 2. From all the built in Ruby methods we've seen in class this week, choose three that you think are particularly helpful and create examples to show how they work.

# your three built in ruby methods

#### 3. Look at this horrible ruby code, and fix it to be good ruby code. 

``` ruby
class example
  def initialize(day)
    @day=day
  end
  
  def Say_hi
    if(day == "Friday"){
      puts "TGIF!"
    }
    elseif(day == "Monday"){
      puts "Its monday again"
    }
    else
      puts "another day"
  end
end
```