Write the Expression as a Sum of Logs $\log _ { \mathrm { b } } \mathrm { y } ^ { 2 } \mathrm { z } ^ { 5 }$

Write the expression as a sum of logs. Express powers as factors.
- $\log _ { \mathrm { b } } \mathrm { y } ^ { 2 } \mathrm { z } ^ { 5 }$

A) $2 \log _ { b } y + 5 \log _ { b } z$
B) $10 \log _ { b } y \mathrm { z }$
C) $\log _ { b } ( y z ) ^ { 10 }$
D) $\log _ { b } 10 y z$ Use a calculator to evaluate the expression.