area of a circle is increasing at a constant rate of 7.2 meters per second . What is the rate of increase in the radils of the circle at the instant when the circumference of the circle is 20pi meters

The sum of two numbers is 12 and their difference is 18 what are the two numbers

The anwser cause i do not understand just plez

The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i.e dependent variable) and identify the independent variable.