Answer:
I believe the answers is C
Step-by-step explanation:
When you multiply numbers with powers that have the same base (in this case 5), it is like you are adding the powers together. So, 18+3= 21 so the answer is 5^21
If this was helpful, please let me know ;)
14/15
simple
3/5 + 1/3= 14/15
6x+7