Molly, her spouse, and her mother jointly purchased an estate for $720,000. Their individual investments in the estate were in the ratio of 2 : 8 : 8, respectively. a. Calculate how much each person invested. Molly's Investment: Round to the nearest cent. Spouse's Investment: Round to the nearest cent. Mother's Investment: Round to the nearest cent. b. Each of them decided to invest an additional $35,000 to develop the estate into a small family resort. Calculate their new investment ratio after the additional investment. Express the ratio in its lowest terms. ::