For all problems, your answers should provide (a) Timeline, (b) Financial equation, (c) Algebraic equation, and (d) Answer in 9 decimal places in sequence. 6. Kangaroo Autos is offering free credit on a new $10,000 car. You pay $1000 down and then $300 a month for the next 30 months. Turtle Motors next door does not offer free credit but will give you $1000 off the list price. If the rate of interest is 11 percent a year, which company is offering the better deal? Calculate the present value of payments. 7. How long will it take your investment to triple its value at 13 percent interest