Simplify:

Question

Note: The first letters next to log are the small letters.
16.) logr r

17.) logt t^4

18.) logb 1

Answer 1

16.) logr r
r^? = r
? = 1

17.) logt t^4t^? = t^4
? = 4

18.) logb 1
b^? = 1
b = 0
(Any number to the zero power is one)

Answer 2

Thanks

Answer 3

Please forgive my sloppy typing. Here is what I meant. I hope you were able to figure it out anyway:

17.) logt t^4
t^? = t^4
? = 4

18.) logb 1
b^? = 1
? = 0