To find the slope of a line use the formula m=rise/run to do that all you have to do is take two points from the line
180/60 = the number of student for 1%
180/60 = 3
so 1% of the school's population is 3 students
so, 3 x 100 = 300 students
and to check:
300 x .60 = 180
so, the total population of the school is 300
Answer:


Step-by-step explanation:
Look at the second equation.
Add 6y to both sides:

Hence,

Substitute this into first equation:



Since y = -x,

Answer:
Same
Step-by-step explanation:
B- 18 units to the left of zero