Answer:
1. Slope =1.5
2. Slpe=20
Step-by-step explanation:
The first one
150/100=1.5
Second one
1/0.2=20
Answer:

Step-by-step explanation:
(Given)
(Given)
(Corresponding angles)


(By exterior angle theorem)


I don't know.
you should do it your self not with the internet
Answer:
the substitution method is one way to solve linear equation. the substitution method is when substitute the one y value with the other:
example :
x+y=10
y=10-x ( value of y)
2x+y=12 ( substitute the value of y in the equation )
2x+(10-x)=12
2x+10-x=12 ( now solve for x)
x=12-10
x=2 ( substitute the value of x in the equation x+y=10)
x+y=10
2+y=10
y=10-2
y=8
( i hope it helps)