URGENT HELP NEEDED PLS. IN LESS THAN AN HR.

1) Given the following equations: consumption equation is C = 10 +0.75Y, Investment equation is: 100 10i, transactions and precautionary demand for money is: 0.25Y, speculative demand for money is: 5 10i and money supply is: M3 = 55. Md =0.25Y+510i;Y=C+I a. Derive the IS and LM equations in term of income and interest rate. b. Find the equilibrium level of income and interest rate. c. Find the transactions and speculative demand for money. d. Find the equilibrium level of consumption, saving and investment. e. Graph the equilibrium level of income and interest rate. 2) Outline the assumptions when constructing the IS-LM Model. 3) Explain Keynes\" Liquidity Preference Theory