Intense Q... Subtle Ref... Intense Re... Styles Book TIE 7. Sheila Wells is looking for an investment vehicle that will double her money in five years. a. What interest rate, to the nearest whole percentage does she have to receive? b. At what rate, how long will it take the money to triple? c. If she can't find anything that pays more than 1196, approximately how long will it take to double her investment? d. What kind of financial instruments do you think Sheila's looking at? Are they risky? What could happen to Sheila's investment