Answer:
Undefined
Step-by-step explanation:
I did the quiz.
The answer to 9 is below
2(L + W) = P
2(W + 5a - b) = 16a + 2b
2(W + 5a - b) = 2(8a + b)
W + 5a - b = 8a + b
W = 3a + 2b
21 ounces