Ben buys a $200 bond redeemable at 120 in 5-years. The bond interest rate is j2 = 7%. What is the price of this bond to yield j2 = 8%? $189.39 None of these options $218.91 $248.12 $133.25 The resale value R (in dollars) of a company car after t years is estimated to be given by R(t) = 22,500(0.84). What is the rate of depreciation (in dollars per year) after 5 years? -$ 1378/yr None of these options 0-$ 1641/yr 0-$ 1157/yr 0-$ 15,144/yr If $1500 is invested at an annual interest rate r compounded monthly, the amount in the account after 5 years is given by 1 A = 1,500(1+ 12 -r) 60. Find the rate of change of the amount A with respect to the interest rate r. 1 90,000(1+ 12 7-) 60 1 90,000(1+ 12 13 r) 59 1 2000(1+ 12 r) 59 None of these options 7,500(1+ 1 -r) 59 12 The principal portion of the 20th payment of Ron an amortized loan is $340.95 and the principal portion of the 21st payment of Ris $348.11. If there are 55 payments in total, what is R? $659.69 None of these options $702.43 $647.25 $720.47 A publishing company has published a new magazine for young adults. The monthly sales S (in thousands) is given by S(t) 800t t+2 where t is the number of months since the first issue was published. Find S(3) and S'(3) and interpret the results. None of these options At three months, the monthly sales are 480,000 and decreasing at 64,000 magazines per month. At three months, the monthly sales are 2,400,000 and increasing at 800,000 magazines per month. At three months, the monthly sales are 2, 400,000 and increasing at 64,000 magazines per month. At three months, the monthly sales are 480,000 and increasing at 64,000 magazines per month