26. Janet uses 2
2.1 cups of strawberries to make 4 cups of strawberry jam. How many cups of
strawberries are required to make 10 cups of strawberry jam?

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.