The circumference of a circle = 30. What is the diameter, radius, and the arc length
of a 270° arc?

How can you decide witch operations to use to slice a two step equation

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?