[Functions] I just need yes's and no's.a lot of them, functions just really don't click with me and I don't understand why, they make me mad ;-;

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

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.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account