a. If an economy is initially in equilibrium and injections rise by $1 million then withdrawals will have to rise by $ 1 @ million in order to bring injections and withdrawals back in balance. b. If the economy's MPW is 0.40 then incomes and output have to rise by $ 1.9 million to create the required additional expenditures. Enter your response rounded to 1 decimal place, except in the case where the answer is a whole number, In which case no decimal is needed