Answer:
$110
Explanation:
We are given that
Cost of 1 square yard of floor tile =$11
We have to find the cost of 90 square feet of tile.
To find the cost of 90 square feet we will convert it into square yard.
We know that
9 square foot=1 square yard
1 square foot=
![(1)/(9)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bfzmi9kc8nsnnq4oe3fkodibqjfo3tui8b.png)
90 square feet=
square yard
By unitary method
Cost 1 square yard=$11
Cost of 10 square yard=
$110
Hence, the cost of 90 square feet to tile a bathroom=$110