Who made the first alphbet?

If a rectangle has sides of 2ft and 12ft what is the area? How far will you travel if you drive 3 hours at 60 mph and for 2 hours at 70 mph? How many months is 1000 hours? Is hsn jewelry 100 percent real? What number you are thinking of? What is the GCF of 168 and 69 and 189? What number can go into 63 and 147? How many acres in 1850 foot circle? What is 517divided by 2? What term means it is an if and only if statement? Is over a prepoisition? What is the name of a shape with 6? What is sixty diveded by 15? What is exponential of 243? Neolithic people developed systems of mathematics for of the following reasons except? Divide 555 by 12 and write the quotient with a remainder? What is the answer to 8.5 stone - 9 pounds? How many hours equal 494min? Is 1 a multiple of any of the numbers why or why not? What is 6843-unknown equals 2220?