Plz help me plz asap anybody is welcome to answer

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

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

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300