How do you solve
X + 17 = 50

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.

Nicholas says that two pairs of congruent angles can be used to show that the two triangles are similar

Francesca had 32 cups of flour and she uses 3/8. how much flour did francesca use? write the equation.