An electrician charges an hourly rate of $50, but also charges a fixed fee for making house calls regardless of time spend on the job. One day, the
electrician earned a total of $250 for a 2 hour job. Write an equation for C, in
terms of t, representing the total cost of the electrician's services if the
electrician spends t hours at the house working.

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

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.

If g^-1(x) is the inverse of g (x) which statement must be true