In each of the following cases, compute the corporation$$s regular tax, average tax rate and marginal tax rate: Use $2017$ tax rate schedule if needed.

Required:

Silva Corporation has $$166,000$ taxable income for its tax year ended December $31,2017.$

Goyal Corporation has $$166,000$ taxable income for its tax year ended December $31,2018.$

Carver Corporation has $$166,000$ taxable income for its tax year ended October $31,2018.$

Note: For all requirements, Do not round intermediate calculations. Round your final answer to nearest whole dollar amount and average tax rate answer to $2$ decimal places.