can you please help me with this question

Q12 Suppose that the table below shows an economy's relationship between real output and the inputs needed to produce that output: 14 marks Input Real Quantity GDP 300 $800 200 700 150 500 a. What is the level of productivity in this economy? b. What is the per-unit cost of production if the price of each input unit is $4? c. Assume that the input price increases from $4 to $6 with no accompanying change in productivity. What is the new per-unit cost of production? d. In what direction, would the short run aggregate supply curve shift? e. What effect would this shift of the short-run aggregate supply have on the price level and the level of real output? f. Suppose that the increase in input price does not occur but, instead, that real GDP increases by 100% percent. What would be the new per-unit cost of production? g. What effect would this change in per-unit production cost have on the short-run aggregate supply curve, price level and the real output level