Answer:

Step-by-step explanation:
Here, the given expression is:

Now, by logarithm rules, we know
if 
, then x =
Comparing here, b = 10 and z = 2
⇒ y = 
or, 
Answer:
b b.b b b b b b b b b b b b b b b b b b
Step-by-step explanation:
b b b
It is11 because 5 plus 6 is 11
Answer:
i told you in the comment it equals 7
Step-by-step explanation:
Nina's rate is 12.7 mph and Sophia's rate is 10 mph. Therefore, Nina is faster.