Solve the following system. 5x - 5y + 8z = 6
x + 2y + z = 12
3y - z = 10
Pl explain how you do it because I’m lost

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?