2. The radius of a circle is increasing at a rate of 4 cmfs. At what rate is the area of the circle increasing when the radius is 15 cm? Stag 1: Draw a circle. Label any variables with letters and any known quantities with numbers. You may need to revisit this step after you think you are through and update it. {1 pt} Stag 2: Using equations, state the known quantities, including rates, and desired rates. You may need to revisit this step after you think you are through and update it. {1 pt} Stag 3: Write an equation that relates one of the known rates with one of the desired rates. It may include additional numbers and variables as well. You may need to simplify this equation. Only plug in numbers for quantities that are always known; notjust known at a particular moment. [2 pts} Stag 4: lmplicitly differentiate the simplified equation in Step 3 with respect to time. [2 pts} Stag 5: Solve for the desired rate by plugging in information from Step 2 and other information, if necessary. Don't forget unitsl Express your answer as a decimal correct to two decimal places. [2 pts}