W=340-z (vice versa)
x=540-w (vice versa)
y=-150+x (vice versa)
z=-50+y ( vice versa)
Answer:
-2x^2-5x+16
Step-by-step explanation:
Remove parenthesis:
-10x^2+9+8x^2-5x+7
Combine like terms:
-10x^2+8x^2-5x+9+7
= -2x^2-5x+9+7
=-2x^2-5x+16
Answer:
The scale is 11 feet per one inch.
Step-by-step explanation:

30% diet and 10 regular not shoreee