PLEASE HELP ME WITH NUMBERS 1 AND 2 ILL GIVE BRAINLIEST

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.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.