1 meter is 100 cm so that means 70 cm is 70% of a meter
Square needs to have all equal sides and length and width are the same.
So sqrt the area.
sqrt 121 = 11
11 feet is the length of one side, square has 4.
So
11 * 4 = 44
The perimeter of a square (whose area is 121 feet) is 44 feet.
I saw Sweet Ems’ is the better deal since you could get a 5-lb bag just for $4.10 while, Yum Yum’s is 15 cents more for the 5-lb