3. (3 marks) Harley is saving to buy an e-bike. She wants to have $2800 four years from now by making deposits into an investment that earns a continuously compounding interest rate of 5%. She begins now with $1200, and will make a deposit of $900 1 year from now. If she hopes to reach her goal in four years by making one more deposit of x dollars two years from now, what is x? (to the nearest dollar) (a) $688 (b) $208 (c) $261 (d) $352 (e) $593 4. (3 marks) A payday loan company will charge you $18 for a one month loan of MacBook Air