Economics questions

Help with questions!If you could provide explanation too, I would be grateful The following screenshots are from previous exercised•The answers and explanations have been included•I have added these as you need knowledge of the model used in the old homework to help with the questions I have now•Yo u m a y w a n t t o c h e c k t h e n e w q u e s t i o n s b e f o r e g o i n g t h r o u g h t h e model•The new questions (which I need help with) will be included after the old homework questions and explainations New Questions (3 total)•Please solve the new questions •Please do so in a way in which I can then learn from how you answered them Q1 Q1 Q1 Q2 Q3