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

The answer is c 0.27

To find the  unit rate, divide the numerator and denominator of the given  rate  by the denominator of the given  rate. so in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the  unit rate.