Peter is five times as old as kristin. in two year's time, peter will be three times as old as kristin. how old are they now? (how do you get the answer? )

Could answer every question with steps

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.