Answer:
To find the values of A and B, we'll substitute the corresponding quantities into the demand and supply functions.
For A:
Qs = -5 + 2P
Given Qs = 8
8 = -5 + 2P
2P = 8 + 5
2P = 13
P = 13/2
P = 6.5
For B:
Qd = 10 - P
Given Qd = 2.5
2.5 = 10 - P
P = 10 - 2.5
P = 7.5
So, A = $6.5 and B = $7.5.