Which statement describes how to determine if a relation gven in a table is a function?
If none of the output values are repeated, the relation is a function
If none of the input values are repeated, the relation is a function
If any of the input values are equal to the output values, the relation is a function
If all the output values are paired with the same input value, the relation is a function

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.