From: Rick Barrett <chngth3wrld@...>
Date: 2009-11-02T14:55:59+09:00
Subject: Re: Homework Help - Methods

def get_input(question_to_ask)
  puts question_to_ask
  input = gets().chomp().to_f()
end

def get_price()
  prices = []
  price = get_input("Enter item price: ")

  while (price != 0.0) do
    prices.push(price)
    price = get_input("Enter item price: ")
  end

  return prices
end

So...basically get_input is inside of get_price...so there's no need to 
call it down later in the code? Right?

Then there's the second half of the code...

def get_subtotal(prices)
  subtotal = 0.0

  prices.each do |price|
    subtotal = subtotal + price
  end

  return subtotal
end

def get_tax(tax)
  return tax * SALES_TAX
end

get_price
get_subtotal
get_tax

puts "Subtotal: $" + subtotal.to_s()
puts "Sales Tax: $" + tax.to_s()
puts "Total: $" + total.to_s()

I get the same error (0 for 1) (Argument Error) for get_subtotal...
How do I get the array "prices" into the get_subtotal method?
How do I get the input from the get_prices method to be added together 
in the get_subtotal method?
And then how do I get it to print each of those if the variables stay 
inside the methods?

I've searched the internet and read the method chapters we're on in my 
book and I can't find the answer...or an explanation that I can 
understand...for some reason I just can't get this...
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