The augmented matrix below represents a system of equations. -1
1
27
14.
w do
2 1
1
1
7
Which matrix results from the operation R1 R2?
NEED IT ASAP

Plz i want answer and i would appreciate it is is a b c or d

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

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells, n, and the total amount he earns in a year, e. what is the total amount abe would earn from selling 10 apartments in one year