Achef has 48 lunch orders to make. he sees that 38 of the orders are for chicken salad. how many of all the lunch orders are for chicken salad? express your answer in simplest form. not for fake answers

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.