Arectangular frame is 3/4 feet long and has an area of 1/2 square feet. how wide is the frame?

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

Need solving this second acceleration problem.

How to use order of operation in 20 divide by 4 multiply 5 = 1