There are 8 Ounces in a cup. Therefore the Tablespoon is 1/2 Ounce. A teaspoon is 1/3 of a tablespoon or 1/6 of an ounce. Remember this, 128 ounces in a gallon. 1/2 of a gallon is the next stop down = 64. 1/2 of that is a quart = 32 ounces. 1/2 of that is a pint = 16 ounces.
The difference between US Letter and Legal Paper sizes and international A4 is discussed here, however it is important to say that Letter is effectively the equivalent to A4 size in the USA.
The typical U.S. office worker uses more than 10,000 sheets of paper per year, which is about 2 cases of paper per employee. average price of $40 for a case of standard copy paper, this is an $80 annual cost per employee. 10â11% of the lifecycle cost of that paper, according to a government study conducted by California's Alameda County. costs at 56%, according to the Alameda study. another $6 in handling and distribution of the paper.