5/2 as a mixed number

7+ 2[(5^2)*152%]= answer as soon as you can

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

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