Answer:A=X x=8
B=x X=9
C=x X=10
Step-by-step explanation:
The number of solutions that <span>exist for the system of equations is equal to the number of independent linear equations that consist the matrix. For example, in order to find the values of two independent variables, then we have to provide two independent equations according to law of degree of freedom.</span>
If the change in the number of pounds is p, the change in the cost will be $11c.
This is because each pound costs $11.