Emma is installing a new tile floor. Each tile measures 12 inches by 12 inches. The room in which she is installing the tiles measures 14 feet by 10 feet. If each tile costs $1.25, how much will it cost Emma to complete her project?

Area of her floor 14 by 10 ft^2 or 140 ft^2

each tile will cover 1 ft^2

so she will need 140 tiles.
Cost = ......

To find out how much it will cost Emma to complete her project, we need to calculate the number of tiles she will need and then multiply that by the cost per tile.

First, let's convert the room dimensions from feet to inches. Since there are 12 inches in 1 foot, we multiply both the length and width of the room by 12:
Length of room = 14 feet * 12 inches/foot = 168 inches
Width of room = 10 feet * 12 inches/foot = 120 inches

Next, we need to figure out how many tiles will be needed to cover the entire floor area. To do this, we need to determine the area of the room and divide it by the area of a single tile.
Area of a single tile = length of tile * width of tile = 12 inches * 12 inches = 144 square inches

Area of the room = length of room * width of room = 168 inches * 120 inches = 20,160 square inches

Number of tiles needed = area of the room / area of a single tile = 20,160 square inches / 144 square inches = 140 tiles (rounded up)

Now, we can calculate the cost of the project by multiplying the number of tiles by the cost per tile:
Cost of project = number of tiles * cost per tile = 140 tiles * $1.25 = $175

Therefore, it will cost Emma $175 to complete her tile floor installation project.