Show all work. 1. (3 pts) Find ~ by implicit differentiation. x5 + 2x = y3 - 6y + 1 2. (3 pts) The area of a healing wound is given by A = mr2. Suppose the radius of the wound is currently 25 millimeters, and the radius of the wound is decreasing at the rate of 1 mm per day. About how fast is the area of the wound decreasing (in mm per day)? 3. (2 points) Use properties of logarithms to write 3 In x - 7 Iny + ; In z as a single logarithm. 4. (2 points) Use properties of logarithms to expand log ()