We calculate the floor area of the kitchen: A = (22) * (16) A = 352 feet ^ 2 We consider the following conversion: 1 foot = 12 inches. Applying the conversion we have: A = 352 * (12/1) ^ 2 A = 50688 in ^ 2 We calculate the area of each tile: A = (16) * (16) A = 256 in ^ 2 Then, the number of tiles is given by: N = (50688) / (256) N = 198 Answer: He needs to buy 198 tiles