Jeremy has a belt that was 6.4 decimeters long . how many centimeters long is the belt jeremy made? plz !

41/17 as a decimal rounded to the nearest hundredth

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i