X-y-3z=-9
1 =-3x-1
x=5y-z +23 i need to find x, y and z with work

As soon as look at the parallelogram abcd shown below: the table below shows the steps to prove that if the quadrilateral abcd is a parallelogram, then its opposite sides are congruent: which choice completes the missing information for reason 5 in the chart? (6 points) congruent parallelograms congruent triangles similar angles similar triangles

How to write 3 tenths and 5 tenths as a decimal

I'm confused on this could anyone me and show me what i need to do to solve it.