Every 2/3 hour, harris can sew 1/6 pair of jeans. what is harris's rate in pairs of jeans per hour? drag and drop the correct value into the box. [ ] pair(s) of jeans per hour options: a)1/9 ,b) 1/4 , c)9, d) 4

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.