Find the coordinates of the image of the point (-5,7) when it is reflected across the line y = 11

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

Solve the triangle. a = 21°, c = 105°, c = 5

What is the total surface area of the square pyramid