Answer:
2896.34 cubi centimetres
Step-by-step explanation:
Experimental probability is if an experiment was actually run. If those values are the result of an experiment, then the probability is desired value (white) over total possibilities.

or 0.6
6.40x+9.90(154-x)=1230.90
Solve for x
X=84 for child
154-84=70 for adults
In interval <a, b> the average rate of change the function you count from this formula:

Here you've got a=-1 and b=1:
I'm sure the measurement was made in grams because:
1. most cell phones weigh between about 100 and 150 grams
2. there's no cell phone that weighs 113 kg, 113 pounds, 113 ounces etc.