The diameter of this circle is 20 mm. What isthe area of the circle? (Use 3.14 for .)

L21 - 8 ex. The demand function for a certain product is given by the equation x p+24p =2 0,hedmand x is measured in hundreds of units. At what rate is the demand for the product changing when the current weekly demand is 400 units and the price is decreasing at the rate of 25 cents weekly