Answer:
The possible numbers of miles can be from 1 to 12.
Step-by-step explanation:
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x = 4
we know that 72 and (2x + 10) add up to 90
90-72 = 18
(2x + 10) = 18
2x = 8
9
first one is A and the second one is B.
y=-16^a/x^2 + 4