Yo if someone could just give me the answeres to these ill give u brainliest and 5 start rating its just simple algebra but ion have time to work on it cuz im working on a different assignment so like could someone just tell me the answers so i can write them quickly ​

13: -x+6

15: 3x

11: -8x-20

17: 6x+1

18: -1

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

i think the answer would be c