Answer:
If you were wondering how much he had to begin with, it would be $5.10.
Step-by-step explanation:
Hopefully this helps you :3
D , the answer is "six less than a number b"
42100000, so this is in scientific notation.
Answer: 12
Step-by-step explanation:
21 divided by 10.5 is 2, so you would do 24 divided by 2 to get 12.
2 is the scale factor.