You'll need to subtract 1/12 from 3/4. Seeing that 12 is the LCD, convert 3/4 to 9/12. Subtracting 1/12 from 9/12 results in 8/12, or 2/3 gallon (the amount of milk left after breakfast).
The range of the data can be calculate by subtracting the min from the max. In this case, the min is 10 and the max is 90. The range is 90 - 10, or 80.
Como no entiendo lo que es es eso ?
The answer should be A=12
