Um...twelve?
One yard is equal to 36 inches. Therefore, 300 inches is equal to 8.3 recurring, or 8 and three thirds, yards.
There are 12 inches in one foot. Therefore, 300 inches is equal to 300/12 = 25 feet.
One inch is equal to 25.4 millimetres. Therefore, rounded to two decimal places, 300 millimetres is equal to 300/25.4 = 11.81 inches.
One point is equal to 1/72 inches, or 0.0138 recurring (that is, 0.0138888..) inches. Therefore, 300 points is equal to 300/72 = 4.16 recurring (that is, 4.16666...) or 4 and one sixth inches.
There are 2.54 centimetres in one inch. Therefore, 300 inches is equal to 300 x 2.54 = 762 centimetres.
None, since there is no such thing as a millaliter. Furthermore, marbles come in all sorts of sizes.
There are 2.54 centimetres in one inch. Therefore, 300 inches is equal to 300 x 2.54 = 762 centimetres.
0.15
There are 0.0254 metres in one inch. Therefore, rounded to two decimal places, 300 metres is equal to 300/0.0254 = 11811.02 inches.
300 centimeters is 118.11 inches.
2 feet 6 inches is equal to 30 inches.30 inches times 10 inches is equal to 300 square inches.
There are 2.083 square feet in 300 square inches (2 1/12 sq. ft). Each square foot is equal to 144 square inches.