MATH TEST. PICK ABC OR D ! will mark brainlist

Factor this polynomial completely x^2-64

Polynomial that can be factored as (3x-4)(3x+4)

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.