Alexia figures out the answer to 6x9 by lowering the thumb on her right hand (shown). What is the answer? Explain alexia strategy

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm

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.