Y=-9x because y=mx+b is the formula so plug in the slope, m(-9) and the x-intercept, x(0)
They need look a median wieght.
The distance between the Earth's surface and the upper edge of the Earth's atmosphere would be Q - V.
The distance from the Sun to the Earth is Q. The distance from the Sun to the upper edge of the atmosphere is V. If you subtract V from Q, the remaining distance is that of the Earth's atmosphere. Q - V = the atmosphere
Answer:

Step-by-step explanation:
You need to add the amount Shawna & Ryan ate together, then subtract it from 1 to find the amount of pizza that was left for Dominic to eat.
+
= ?
Make all the denominators the same to add fractions.
is 
is 
+
= 
1 -
= 
Perimeter of a square = 4L
4L = (8x+12)ft
L= (2x+3)ft