12 songs. 25% of 12 is 3, so you add 3 to 12 and get 15. You then find that 20% of 15 is 3 so you subtract 3 from 15 and get 12 again.
The last one is not scientific notation because the 25.67 is greater than 10
Answer:
It would be D.
Step-by-step explanation:
Hope this helps!!!
Answer:

Step-by-step explanation:





10 because 5×2 is equal to 10