[填空题]
For 2019, the income tpuuti x:ditf)7:87n ugx-u k0ax rates for a resident infdv4l q5*ivfw37z g+f g6gjb+ UK are shown on the graph below6 d q5gif3+4*bjvgwvlf+z7g f .
1.Write down the highest amount of income that is free of tax.
2.Calculate the amount of tax payable on the first $£50000$ of income. Tax payable =
3.Theresa earns $£148500$ in 2019. Find the amount of her income tax payable. Tax payable =