Write this rate as a unit rate 7/5 over 2/3

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

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.

Determine if this is a solution to the system