No links please and thank you

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

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.