This circle is centered at the orgin, and the length of it’s radius is 5. what is the ewuation of the circle?

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

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?