So you wont get your hands dirty and its better than using your hand so you wont get messy .
Answer:
I believe the best answer would be A. $10,580
Explanation:
400 x 23.89 = $9,556. 400 x 50.34 = $20,136
$20,136 - $9,556 = $10,580
Answer:
abacus
Explanation:
Focus On. There is a long history detailing the invention of computing and calculating machines. The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.
I believe the answer is: Draft
Draft is a rough planning that we made before putting any specification on what we want to do for the presentation. In the draft, we would write the 'big picture' things that we wish to achieve without having to put a specified plan on how to achieve that 'big picture' goals.
Atom/ion Electron Proton Neutron
Al 13. 13. 14.
Fe 26. 26. 30.
Cu 29. 29. 35
Mg 12. 12. 12.
La 57. 57. 82
Pb 82. 82. 126.
Ar 18. 18. 22
Ne 10. 10. 10.
Sr 38. 38. 52
Br. 35. 35. 44