P$16$ Corporate taxes Southern Textile Ltd$.$ is a manufacturer of sportswear that supplies to a number of European retail stores. Its registered office is in Singapore. During $2017,$ the firm earned SGD $112,000$ before taxes. Singapore$$s corporate tax rate is $20\%.$ Firms are eligible for a tax rebate of $50\%$ of the tax amount, capped to a maximum amount of SGD $10,000$ every year on their tax liability.

a$.$ Calculate the firm$$s tax liability using Singapore$$s corporate tax rates.

b$.$ How much are Southern Textile$$s $2017$ after$-$tax earnings?

c$.$Calculate the firm's net tax liability.

d$.$ Calculate the firm$$s average tax rate.