Econ Fun! Mult Choice Help please... thank you! Let me know if you need help as well!...?

Given C=9000+0.75Yd, the break-even point will be:
a-9000
b-12000
c-25000
d-36000

If nominal GDP is 4tril and the money supply is 2tril, then velocity will be:
a-1/4
b-1/2
c-2
d-4

If the reserves in U.S. banks totaled 5000 and total deposits were 20,000, the banking system's reserve ratio would be:
a-.05
b-.25
c-.50
d-.75

Suppose that a banks excess reserves increase by 5mil but that its loans do not increase. If all else is equal, the increase in excess reserves implies that the money supply:
a-does not increase
b-increases by less than the increase in excess reserves
c-increases by the same amount as excess reserves
d-increases by more than the increase in excess reserves

Which of the following factors will shift the long run aggregate supply curve?
a-a change in aggregate demand
b-a change in available resources
c-a change in price level
d-a change in sales or excise taxes.

Answer:
Yes, I guess I do need help. I thought for sure I'd be able to answer some of these--I did take a few college econ courses, but I guess my forgetting curve is much steeper than my learning curve.

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