Will give brainliest and 50 points!

C is a function.  The must pass the vertical (up and down) line test.  Put a vertical line on it.  It it touches 2 points it is not a function.

A B and D are not functions because when you draw a vertical line (Vertical line test) the line passes through 2 points of the graph where as in C, it is a function because when you draw a vertical line through the graph, the line only hits 1 point

found it xd it ok yt

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.

happy to

pls mark as brainliest.