C. negative exponents always go at the bottom
Answer:
35
Step-by-step explanation:
<u>7x2</u>+21
<u>14+21</u>
35
*The underlined problems is what you do first*
Right change flip it's simple
Answer: The car can travel 225 miles on 6 gallons of petrol.
The both equations should equal 180° when combined. So when you add like-terms you get 8x+20=180. X=20°