Today you invest $100 in a Robinhood stock account on part of a share of Amazon stock today. Which one of the following will INCREASE the future value of that amount you expect to receive? robinhood Decreasing the rate of return that you expect to receive. Lengthening the investment time period over which you make this FV calculation. Assuming the Robinhood drop the free brokerage fees so that when you sell it, you assuming that there will be a $20 charge. Shortening the investment time period over which you make this FV calculation