Amendments to the Truth-in-Lending Act"s credit card rules state that a company may not retroactively the interest rates on existing card balances unless the account is sixty days delinquent; must provide forty-five days" notice to consumers before changing its credit-card terms; must send monthly bills to cardholders twenty-one days before the date; may not increase the interest rate charged on a customer"s credit-card balance except in situations, such as when a promotional rate ends; may not over-limit fees except in specified situations; must apply payments in of any minimum amount due to the rate when the consumer has balances at different interest rates; and must not finance charges based on the previous billing cycle.

Profits from using currency options and futures. on july 2, the two-month futures rate of the mexican peso contained a 2 percent discount (unannualized). there was a call option on pesos with an exercise price that was equal to the spot rate. there was also a put option on pesos with an exercise price equal to the spot rate. the premium on each of these options was 3 percent of the spot rate at that time. on september 2, the option expired. go to the oanda. com website (or any site that has foreign exchange rate quotations) and determine the direct quote of the mexican peso. you exercised the option on this date if it was feasible to do so. a. what was your net profit per unit if you had purchased the call option? b. what was your net profit per unit if you had purchased the put option? c. what was your net profit per unit if you had purchased a futures contract on july 2 that had a settlement date of september 2? d. what was your net profit per unit if you sold a futures contract on july 2 that had a settlement date of september 2