Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.
X+2y-3z=-28
3x-y+2z=3
-x+y-z=-5

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost