The Seinfeld's family room measures 19 feet by 30 feet. They are covering the floor with square tiles that measure 1 foot on a side and cost $0.68. How much will they spend on tile?

19 * 30 * 0.68 = ?

To calculate how much the Seinfeld family will spend on tiles, we need to determine the total area of the floor and then multiply it by the cost per square foot.

First, find the total area of the family room by multiplying the length and width of the room:
Area = Length × Width = 19 feet × 30 feet = 570 square feet

Next, determine the number of tiles needed by dividing the total area of the room by the area of each tile:
Number of tiles = Total area ÷ Area of each tile

Since each tile measures 1 foot by 1 foot, the area of each tile is 1 square foot. Therefore,
Number of tiles = 570 square feet ÷ 1 square foot = 570 tiles

Finally, calculate the total cost of the tiles:
Total cost = Number of tiles × Cost per tile

Given that each tile costs $0.68, the calculation is as follows:
Total cost = 570 tiles × $0.68 = $387.60

Therefore, the Seinfeld family will spend $387.60 on tiles.