Answer:
1/7^2
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
a^-b = 1/a^b
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Then your expression simplifies to ...

Answer:
Step-by-step explanation:
that would be the anwer
7+d=19 is the answer
subtract 7 from each side d=19-7
d=12
Step-by-step explanation:
step by step step by step step by step by step by step step by step 352 Part 8 International natural + 11 exercise to fork out