Answer:
Step-by-step explanation:
4x-14+x+85=180
5x+71=180
5x=109
5x/5 109/5
x=21.8
Hope This Helps!
Answer:
80 inches wide
Step-by-step explanation:
3 inches = 20 feet. 12/3=4. 4*20=80 inches
Answer: -72a^3 +108a^2
Collect like terms
(2a)(6a)(2a-8a+9)= (2a)(6a)(-6a+9)=12a^2(-6a+9)
= -72a^3 +108a^2