Which classification describes the following system of equations? (12x+5y-32= 36
x-2y + 4z = 3
9x-10y + 5z = 27

Could somebody me with this radical simplification?

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?