Question

true or false

1.Abacus was invented in 17 century
2.A header is printed at the
bottom of a
document
3.Pascaline
invented by
Rebert lays
3.
was​

Answer 1

1)yes

2)false

3)yessssss

Answer 2

I am giving your answer so pls plz please mark me as brainliest also pls plz please follow me

Your answer :

1. False. Abacus was invented in 1300 BC

2. I don't know sorry

3.The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644. It could only do addition and subtraction, with numbers being entered by manipulating its dials.