why does the formula C = ((X + Y) – 23) x 57 works. C is the charge to the passenger and X and Y are the weight (in kg) of the empty case and the weight of luggage, respectively.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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is there a graph

step-by-step explanation:

the answer is: -22 also a

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-lavira: )