HELP ME PLEASE I really don’t know what to do lol

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.

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Select the two pairs of figures that are similar.