Answer:

Step-by-step explanation:
Distance Formula: 
Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>:







3X+9X=180
12X=180
X=15°
Angle 1=3X
Angle 1 =45°
That's your answer.
You use the substitution method simultaneously. He worked 9h at job A
Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1
Answer:
Some of the products do not show the correct powers of x.
D