You roll a number cube and toss two coins. what is the probability of rolling a 2 and tossing two heads ?

Ineed asap. i cant understand this question i need someone to me right away

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

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.