Answer:
Step-by-step explanation:
step 1 : you form a 3 x 3 matrix
step 2: you reduce the matrix to echelon form
step 3: you remove all pivot from the matrix
Step 4: you make sure that the system of equation is not solvable
(3) c=$40+$30h
1) 64
2) 8
3) 2187
4) 5
5) 4
6) 12
7) 9
8)
9) 27
10)
11) 4b
12)
136
(4+6+7)/(7-4) × 24
= 17/3 × 24 = 136