Leon evaluated the expression Negative one-half(–4a – 6) + a2 for a = 8.

Negative one-half(-4(8) - 6) + 82
Negative one-half (-32-6) + 82
Negative one-half(-38) + 82
Negative one-half(-38) + 16
–19 + 16
–3
Analyze Leon's work. Check all that apply.

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.