need help in find the antilogarithm of each logarithm. Use interpolation if necessary.?

Question

log a=0.7380

log g=0.6990

log c=3.8983

Answer 1

1)
log a = 0.7380
log usually represents to base 10 and ln to the base e
so log a to the base 10 = 0.7380
so 10^(0.7380) = a
a = 5.47

2)
g = 10^(0.6990) = 5

3)
c = 10^(0.3.8983) = 7912.25

Answer 2

I suppose base 10
a=5.4702
g=5.0003
c=7,912.2500
Use a scientific calculator