How many vertices does a polyhedron have with 5 faces 3 rectangles and two triangles

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.

12+3b -1=-5-b -12-1+5=-b-3b -8=-4b