Answer:
a. 1/108
b. 7/18
Step-by-step explanation:
x^0 = 1
a. 12 (6^-4) = 12 (1/6^4)
= 12 / 6^4 = 12/1296
= 1/108
b. 14 (6^-2)
= 14 (1/6^2)
= 14 / 36 = 7/18
