Find the angle measure of F (look at the image)

What is the range of the data below? .8090100

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.

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.