A certain forest covers an area of 3500 km² suppose that each year this area decreases by 6.75% what will the area be after 15 years?

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income