If you are trying to find the plot you go up as meany numbers as it says and then go over as meany numbers as it says.
You just add all of the weight of the contents together. 12 3/4+ 8 1/4 +7, which equals 28 pounds.
No it's over : 7.3 , unless your prompts context is close to as in getting there or close in general?
It's the first choice.Correlation that implies causation