What would the point slope form be for y = 2x + 5 , (-1,-1)

Write the following as a base and exponent

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

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.