I don't know hoe to solve for the quantity supplied after tax

laecon I.lyryx.com/student Question 5 [12 points] The data in the following table is for the latest CD by Jane Millworth. a) Fill in the Quantity Supplied (after tax) column assuming that a $4 per unit excise tax is imposed on the supplier. + Quantity Price to Quantity Quantity Consumers Demanded Supplied Supplied (after (before tax) tax) 180 120 + +-+ 165 135 10 150 150 oo OO OO 11 135 165 12 120 180 + + + 13 105 195