Kayla is pricing whole wheat flour. A 5-pound bag at Bargain Mart costs $6.45.
A 2-pound bag at Food Saver costs $2.50.
A 7-pound bag at Grocery Surplus costs $9.45
A 10-pound bag at Economart costs $12.89. ​
​The shop with which sells flour for the lowest unit price is

Food Saver

Step-by-step explanation:

6.45 ÷ 5 = 1.29

2.50 ÷ 2 = 1.25

9.45 ÷ 7 = 1.35

12.89 ÷ 10 = 1.289

Food Saver sells for $1.25 per pound, which is the lowest.

Food Saver

Step-by-step explanation:

Bargain Mart:   6.45/5 = $1.29/lb

Food Saver:   2.50/2 = $1.25/lb

Grocery Surplus:  9.45/7 = $1.35/lb

Economart:   12.89/10 = $1.29/lb

14

step-by-step explanation:

the answer is 21%.