Absolute Zero, also I suggest cropping out your name and teacher for your safety :3 have an amazing day!
Answer:
-11/20
Step-by-step explanation:

first you want to get a common denominator (number on the bottom)

now you can subtract the numerators (number on tope) (also don't touch bottom)

A: 180
Subtract 100 - 55 which gets you 45 then divide that with .25 = 180
Answer:
x= -6
Step-by-step explanation:
Notice that a(-6,7) and b(-6,-3) have the same x-coordinate (-6). This means that x is constant and that the line is a vertical one (x = -6).
The equation of the line through these two points is x = -6.