Answer:

Step-by-step explanation:
Using the rule of exponents
=
, then
= 
Answer:
Using Pythagorean theory : a²+9²=15²
=> a²=225-81=144
=> a = √144 = 12
Step-by-step explanation:
Answer:
2nd option i think
Step-by-step explanation:
bro i highly doubt your in high school and look like that like naw
Answer: 9^-16
Step-by-step explanation:
a^b*a^c= a^b+c
The answer should be 7/10!