The natural numbers are presumed to have started before recorded history when humans began to count things. The Babylonians developed a place-value system based on the numerals for 1 (one) and 10 (ten). The ancient Egyptians added to this system to include all the powers of 10 up to one million.
Answer:
Perpendicular
Step-by-step explanation:
The lines below are perpendicular because they intersect at a 90 degree angle. Hope this helps.
Answer:
28
Step-by-step explanation:
sry if I'm wrong although I used calculator
1. line
2. ray
how this helps
Answer:
17.64
Step-by-step explanation:
Multiply normally, then at the end go to the left 2 times.
