Can anyone explain to me how to solve systems of equations with three variables? especially for this problemx-3z=72x+y-2z=11-x-2y+2z=6

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

Type the correct answer in each box. use numerals instead of words. if necessary, use / fir the fraction bar(s). the graph represents the piecewise function: h