e 15 The value of each bead of an abacus is equal frite inventors name of the following device Napier's bone b. Tabulating Machine EDSAC d. Analytical Engine Rising School Le​

b. Tabulating Machine

Explanation:

The values of each beads in the upper deck are 5 and those in the lower deck are one. Beads are considered to be counted and move towards the beam or the piece of abacus.

answer: military leaders, supporters of the confederacy and supporters of the union.

explanation:

on november 19, 1863, the speech delivered by president abraham lincoln, known as 'gettysburg address', was intended for politicians, military officials, notable citizens as well as general public, and members of the press who had gathered for the ceremony held in gettysburg, pennsylvania. this ceremony was being celebrated since, in that same year, the battle of gettysburg took place in rural pennsylvania, leaving thousands of men, both union and confederate, killed. lincoln argued about equality within the nation, and the purpose of the war being a "new birth of freedom."on the other hand, there is no relation between lincoln's gettysburg address and his son.