Mrs. McNamara just turned 44 and is beginning to plan for her retirement. She would like to make annual contributions to a retirement fund beginning with X on her 45th birthday and increasing by $500 each year until her last contribution on her 64th birthday. These contributions should fund annual retirement checks beginning with $50,000 on her 65th birthday, and increasing by 5% each year until her last retirement check issued on her 84th birthday. The fund will earn interest at the nominal rate of 10% convertible semiannually. Required:
Determine what is closest to the minimum XX needed to ensure that Mrs. McNamara's retirement goals are met?

Which of the following businesses is most likely to disrupt an existing industry? a. closer connex developed an earphone that receives emails and text messages and converts them to voice messages. the first models had poor reception, but they rapidly improved over time. b. mega technologies reconfigured the components used in its touchscreen tablets to create a new type of wearable device for use in restaurants and other service industries. c. particle inc. developed a teleportation technology that can transport physical materials instantaneously across great distances. d. altrea added advanced camera technology to its premium line of smartphones so that they would take the highest-quality photos of all phones on the market.