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A + (-7) = -17
a + (-7) + 7 = -17 + 7
a = -10
Zero would mean the sea level. Since three miles below sea level is -3, and 0-3 is -3.
If you round $2.78 to the nearest dollar ($3) and multiply it by the two gallons she purchased, the estimated cost of the fruit punch would be $6.
Answer:
3
Step-by-step explanation:
