How do you find the surface area of this shape?

Find the image of a(4, -2) after it is reflected over the line y= 2, then reflected over the line x = 2. (-8,6) o (0.-2) o (0,6) (-8, -2)

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi