PLEASE ANSWER all 3 of these correctly I greatly appreciate your help and thankyou for your help ;)))

45. According to Government refinancing of the National Debt, the Debt never has to be paid back. Briefly explain why. 46. According to the crowding-out effect, Business investment spending decreases when the Government decides to spend more money? Briefly explain why that happens. 47. What was the Federal Government budget deficit for Fiscal Year 2020