There are two questions there. Thank you.

Question 10 0/15 pts 9 3 # 99 0 Details The percentage of Americans who are retired has been increasing over the last decade. This is causing some concern because health care, social security, and other costs will be the responsibility of a smaller group of people. That is, as the percentage of retired people increases, the percentage of working age people decreases. The following model predicts the percentage of retired people based on demographic data. t R= 2.15 873.36 where R is the percentage (as a decimal) of Americans who are retired in the year t (for example, the year 1995 would be t = 1995). Use this model to complete the table below by solving for the year. Year % of Retired People 10% 15% 20% Question Help: Message instructor Submit Question Question 11 0/5 pts O 3 99 0 Details Andy's house is on a large lot. He got 100 yards of chain-link fence on sale. He wants to use all of the material to completely enclose a rectangular area in his backyard. He wants to make the fenced area 60 feet wide and as long as possible. What is the longest length possible for the sides? Question Help: ( Message instructor