review.rb

# Review the code below
# What questions do you have?
# What happens if the commented lines
#   are uncommented?

MY_EARNINGS = 10

def sales_tax(amount)
  # puts "tax = #{tax}"
  # puts "amount = #{amount}"
  puts "MY_Earnings is #{MY_EARNINGS}"
  tax = amount * 0.08

  return tax
end

# puts tax

my_tax = sales_tax(MY_EARNINGS)

puts "My Sales tax is #{my_tax}"

# Identify:
# 1.  Method Signature
# 2.  Constant
# 3.  Parameter
# 4.  Argument
# 5.  return value
# 6.  Method body
# 7.  Where do we invoke the method
# 8.  What is the scope of "tax"
# 9.  What will this return:
#       true || false && true
#       (3 + 7) ** 2 > 9 * 9
# 10.  Explain the difference between
#       until loops and while loops