An electrican charges 40$ to come to your house. she also charges $55 for each hour that she works. the electrician charges you a total of $190.how many hours does the electrician work at your house? use h for the number of hours

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.