Answer:
![\$108.92](https://img.qammunity.org/2019/formulas/mathematics/high-school/6ife2v8zq24cpvdr9qfecutlulwzdhcclt.png)
Explanation:
Given unit price : One square foot costs= $3.89
To find the total price of 28 square feet we need to multiply the price of one square foot to 28.
Therefore , the total price of 28 square feet will be :-
![28*\$3.89=\$108.92](https://img.qammunity.org/2019/formulas/mathematics/high-school/myc9hgbm13icpqlcxmtrb56c143fbukfgs.png)
Hence, the total price of 28 square feet =
![\$108.92](https://img.qammunity.org/2019/formulas/mathematics/high-school/6ife2v8zq24cpvdr9qfecutlulwzdhcclt.png)