Answer:
7.75
Step-by-step explanation:
3(2) cube+2(2) square-4
24+8-4=28
Delta = |a b d; b c f; d f g|
(2)
J = |a b; b c|
(3)
I = a+c
(4)
K = |a d; d g|+|c f; f g|.
