Answer: There is change of $0.9 billion in government expenditures.
Step-by-step explanation:
Since we know that
Marginal propensity to consume tells that the rate at which there is change in consumption due to change in income.
According to our situation, MPC is the change in amount of gross domestic product due to change in government expenditure.
So, it becomes,

Hence, there is change of $0.9 billion in government expenditures.
Answer: The hotel doorman for opening the door for him
Step-by-step explanation: that one was tricky
By figuring out was is X and multiply
Answer:
Step-by-step explanation:
We can simplify (cross multiply) to get 
Then we easily simplify to get 