Respuesta :

Is would be a 150% increase. Since your going from 18 to 45, your increase of percentage would be 150%, and the difference is 27.

Answer:

150% increase

Step-by-step explanation:

18 + 18 = 36

Since it adds another 18, this is a 100% increase but we aren't dont yet

Now we add

36 + 9 = 45

Since 9 is 50% of 18, this is a 50% increase

Now we add the total increase in percentage, this is a 150% increase

Hope this helps

-IronWolfX