hey use this key to help you out
exponential form: 10^3=1000 logarthimic form:log10 1000 = 3
therefore, your problem would be...
10^2 = x
10 x 10 = 100 x = 100
log5 x=2
2 answers
log5 x=2
by definition,
5^2 = x
x = 25
by definition,
5^2 = x
x = 25