the longest side of a triangle is 3 more than twice the shortest side and the remiaing side is 2.4cm find the other two sides of of the triangle if the perimeter is 12cm

Which best explains why this triangle is or is not a right triangle?

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

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10