15. -2
16. A. The pool was originally empty
You can reduce the first one by combining the ab and the ba term
Answer:
A. n5+4 B. (4+n)5 C.(4+n)/5 D.(n*n)3 E. (n*3) 2
Step-by-step explanation:
I am not good at explaining but for E. the 2 will be squared but I am not sure how to type it out so Hope this can help ;)
Answer:
Step-by-step explanation:
the first one is correct