Explanation:
Hi,
Store A: y = 9p
Store B: y = 9p + 5
Store C: y = p + 5
Store D: y = p + f
Second Part:
Store A: T = 9n
Store B: T = 9n + 5
Store C: T = n + 5
Store D: T = p + f
I hope this helps :)
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