Erin randomly surveyed 28 households in her neighborhood and found that 16 of them have at least one pet. Based on these data, how many of the 350 households in the neighborhood would be expected to have at least one pet?

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.