Answer:
It is 30 exactly um. yes or no
In short, part A is from 1pm to 6pm, well, that's 5 hours, namely t = 5.
and part B is t = 12, so we simply plug those values in, nothing to it.
and round it up as needed if any.
The answer according to me would be B (-a) + b
Because when you solve it. It would turn into a - b
G = 85
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