Given:
• The side of the square breakfast area is a=10ft.
,
• The length of the rectangular kitchen is l=10 ft.
,
• The breadth of the rectangular kitchen is b=14 ft.
,
• The area of the tile is 1 square foot.
To find the total tile cost when each tile costs $1.29:
First, we need to find the number of tiles required.
So, the formula is

Next, to find the total tile cost.
The formula is,

Therefore, the total cost to buy the required number of tiles is $309.6