Simplify the equation -2xyz(xy + 3yz)

Asporting good store is offering 30 percent off of the original price(x) of football cleats. the discount will be reduced by an another $7 before sales tax.

Which point has an coordinates of (2,0) ? a

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20