First write the equations in the slope-intercept form:

Line 1 passes through the points (-6,-6) and (-4,-3).

Line 2 passes through the points (0,3) and (2,6).

These are two identical lines so the system of equations has infinitely many solutions. The answer is D.
8+4p+2q+r=0
27+9p+3q+r=0
64+16p+4q+r=0
P=-9
Q=26
R=-24
Answer:

Step-by-step explanation:
To find the scale, we write a ratio of
and simplify.
We know
.
We simplify to 
Answer:
Each teacher will have 21 students
Step-by-step explanation:
273 divded by 21 = 21