Answer:
13.3
Step-by-step explanation:
Answer: 9 * (n + 1)
Explanation:
Nine times: multiplication
Sum: addition
n: the unknown variable
Answer:
D. 1/5^(-7)
Step-by-step explanation:
ACCORDING TO THE LAW OF INDICES:

So; 5^(-4)/5^3
=5^(-4)-3
=5^-7
OR,
1/5^7