Please I need a detailed answers to the questions. Thanks for your help.

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

What value of x will make the triangles similar by the sss similarity theorem?

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