2x^2-7x-18x+63
2x^2-25x+63
Answer:
81(x + 2y)(x - 2y)
Step-by-step explanation:

Cost of chicken wings at Buffalo Bills = 8 wings for $7
Cost of 1 wing at Buffalo Bills = 
Cost of chicken wings at Buffalo Mild Wings = 12 wings for $10
Cost of 1 wing at Buffalo Mild Wings = 
Cost of chicken wings at Wingers = 20 wings at $17
Cost of 1 wing at Wingers = 
Hence, comparing all the three costs per wing, we can see that Buffalo Mild Wings is serving chicken wings at lowest price of $0.833 per wing.
<span>a. direct variation
A relationship between two variables in which one is a constant multiple of the other. </span>
805 divided by 5 equals 161