The base of a rectangular prism has a perimeter of 30inches. The length of the rectangular prism is 5 times the height. What is the
volume of the rectangular prism?

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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.