Answer
The range is from $2.7\times10^{-9}H$ to $4.0\times10^{-9}H$.
Work Step by Step
Equation 21-19 gives the resonant frequency of a LC circuit.
$$f_o=\frac{1}{2 \pi}\sqrt{\frac{1}{LC}}$$
$$L=\frac{1}{4\pi^2Cf_o^2}$$
To find the range of L values, find the low and the high value of the inductance.
$$L=\frac{1}{4\pi^2(810\times 10^{-12}F)(108\times10^6Hz)^2}=2.7\times10^{-9}H$$
$$L=\frac{1}{4\pi^2(810\times 10^{-12}F)(88\times10^6Hz)^2}=4.0\times10^{-9}H$$