Mike bought 3 gallons of orange juice to make fruit punch for a party. he used 9 quarts of the orange juice.

how many quarts of orange juice were left?
(1 gallon = 4 quarts)

(type it in) qt

its a type in question, i have to type it in. thats what it means

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.