Answer:
7a+5r
Step-by-step explanation:
5a + 1r + 2a + 4r
add like terms
7a+5r
hope that helps
Well, It would be hard to write out the formula and everything here so I wrote it out for you! Work shown!
Answer:
x=-1/7
Step-by-step explanation:










M∠E ≅ m∠J
m∠F ≅ m∠K
m∠G ≅ m∠L
So, m∠ L is 58.