Write a function for the output is half of the input x

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

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?