PLEASE HELP ME ASAP!!!

Answer:
d) [tex]7^{14}[/tex]
Step-by-step explanation:
we simplify [tex](7^{7})^{2}[/tex] by doing 7 x 2 = 14
so it is now
[tex]7^{14}[/tex]
to check, we can use a calculator.
7 to the power of 14 = 678223072849
and
7 to the power of 7, squared also = 678223072849
Hope this helps!