I think is...
A=Andrews class
L=Laurens class
L-3=A
So, Laurens class has 3 less students than Andrews class.
Answer:

Step-by-step explanation:
Given
----- Sales price
---- Loyalty member discount
Required
This is represented as: L(S(x))
So, we have:

Substitute S for S(x)

Substitute 

I circled the answers for you!
Answer:
E.65
Step-by-step explanation: