What is the greatest common factor of 36 and 126

9

Step-by-step explanation:

36={1, 2, 3, 4, 6, 9, 12, 18, 36}

126={1, 2, 3, 6,9, 14, 21, 42, 63, 126}

GCF={9}

i hope this is what you were looking for.

see attached graph

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