conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Aaron wants to purchase a guitar under a payment plan of $100.00 per month for 12 months.  His father has agreed to lend him the entire amount for the guitar, plus a one-time 10% interest fee for the entire loan.  With interest, how much money will Aaron owe his dad?
conversations.from: assistant
conversations.value: The guitar costs $100 every month for 12 months so it costs 100*12 = $1200
  His dad is charging him 10% interest on the $1200 so interest comes to .10*1200 = $120.00
  All total, Aaron will owe his father the price of the guitar, $1200 and the interest, $120 so 1200+120 = $1,320.00