An oil slick is expanding as a circle. The radius of the

Last updated: 7/14/2022

An oil slick is expanding as a circle. The radius of the circle is initially 2 meters and increases at the rate of 20 meters per day. Express the area of the circle as a function of t, the number of days elapsed. The area of a circle is A(r) = πr². (Type "pi" for the symbol π.)