The radius of a circle is increasing at a constant rate of 0. 2 meters per second. What is the rate of increase in the area of the circle at the instant when the circumference of the circle is 20π meters?.

Nathan is an ecologist. he’s studying the effect of secondary consumers on primary consumers. his current research focuses on a population of blue jays and crows. they eat caterpillars and mice. if the number of blue jays increases, what are the likely effects on other populations? 1the number of crows will increase. 2the number of mice will decrease. 3the number of mice will remain the same. 4the number of caterpillars will decrease.