Its for summer and i forgot how to do it plz me

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

With alll of except for the 2 that i did already

How would you find the height of points on the circle? the topic is trigonometry.