How do you turn -0.2 into a fraction

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.