I don't know how to solve 11 but I guess I can solve 12 so I think those are the answers:
12.
(4, 53)
(5, 85)
Answer:
21 ounces
Step-by-step explanation:
brainly.com/question/15457567
9x9x9x9x9x9x9, theres your answer
Y=-2/3x+0
This is the answer I found