Step-by-step explanation:
![\{8 \} = \{x : x = n, \: n \in \:N, \: \: 7 < n > 9 \: \}](https://tex.z-dn.net/?f=%20%5C%7B8%20%5C%7D%20%3D%20%20%5C%7Bx%20%3A%20x%20%3D%20n%2C%20%5C%3A%20n%20%5Cin%20%5C%3AN%2C%20%5C%3A%20%20%20%5C%3A%207%20%3C%20n%20%3E%209%20%5C%3A%20%5C%7D%20)
Answer:
106
Step-by-step explanation:
Answer:
The 5 unknown are 1 quarter, 3 dimes, and 1 penny.
hope it helps
it says I can't send if it has less than 20 characters why?
Just do a line crossing another in a angle of 90°
1 is linear pair with 2, 2 is linear pair with 3, 3 is linear pair with 4 and 4 is linear pair with 1.