Answer:
none of the above
Step-by-step explanation:
a) There is no factor of 7 (not equivalent)
b) The power of 7 is 3·6 = 18 (not equivalent)
c) The power of 7 is 3 (not equivalent)
d) The equivalent is less than 3^10·7^7 (not equivalent)
e) The power of 3 is 20 -8 = 12 (not equivalent)
None of the offered choices is equivalent to 3^13·7^9.
