PLEASE ANSWER PART 2
Part 1: Stanley makes an $500 investment and then carefully tracks the value as time goes by. At first, the value of Stanley's $500 investment changes by -$4 each day. After how many days, did value of the investment change by -$28?
Part 2: After the loss of funds from described in Part 1, Stanley suddenly sees an increase of $50 in just one day. What is the new value of his investment?