Which doubloons weigh more, the ones made before 1728 or the ones made after 1728? Explain or show your reasoning.

Use pemdas 12.3-2.2x 8.4 divided by 2

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

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?