Write the slope intercept form of the equation of the line throught the given point with the given slope. through (4,-5) slope = -7​

How to do this , and can some one explain

Asequence is a function whose is the set of natural numbers

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.