Correct.

B) Now calculate the mean generation time.

t₀ = 2h: N = 9.6x10², log₁₀ N = 2.98
t = 8h: N = 4.7x10⁶, log₁₀ N = 6.67

g = (log₁₀ N_t - log₁₀ N₀) / log₁₀2

A)
g = (6.67 - 2.98) / 0.301
= 3.69 / 0.301
= 12.26 hour^-1

B)
g = (6.67 - 2.98) / 2.303
= 3.69 / 2.303
= 1.60 hour^-1

C)
g = (6.67 - 2.98) / 2.303
= 3.69 / 2.303
= 1.60 generations in 6 hours
= 6 / 1.60
= 3.75 hours

D)
g = (6.67 - 2.98) / 0.301
= 3.69 / 0.301
= 12.26 generations in 6 hours
= 6 / 12.26
= 0.49 hours (x 60 = 29.4 minutes)