The cost of timber in 2010 was cost(2010) = $100 per unit and its cost index was Index(2010) = 1.00. Question. If it is estimated that the cost index of timber in 2030 will be Index(2030) = 2.00, what is the estimated cost of timber in 2030? Use the cost and price index approach. O $300 per unit. $200 per unit. $100 per unit. O $400 per unit. Let's borrow $100. The bank's APR is 18% and compounds daily. What is the effective annual interest rate? [Choose ] How much to pay after 2 years? [Choose ]