Which triangle makes this statement true?

5/6+7/8what is the answer sealsdbdbshd

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

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.