It would be D because ur an employee and u need a handbook to see what ur handelling
Answer:
m=17/40 
Step-by-step explanation:
So you 5/7m - 1/7 = 9/56 
You Simplify both sides Then
well I Don´t know I hope this helped u, I tried ^^¨
B and c, anything with an x^2 term is a quadratic.