The Nguyens have 1 3 bag of leftover charcoal for their grill. They can prepare 3 meals on the grill using this charcoal. What fraction of the original whole bag of charcoal will they use for each meal?

What is the solution to the equation 9^(x+1) =27

Which expression is equivalent to sq-80

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.