Find the sum (7x + 2) + (-8x + 5).
ur supposed to like simplify it btw its for my sister

How do you summarize data in a two-way frequency table?

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.

How many degrees are there in the central angles in a circle