Answer:
225
Step-by-step explanation:
You are only paying attention to B in this.
3b also means 3 multiplied by b or in this case 3 multiplied by 5, which is 15
Then you would have 15 with an exponent of 2
For exponents you multiply the original number by itself for the number of exponents (2= n multiplied by itself)
This would mean that you would have to do 15 by 15 getting your answer of 225
