Answer:
The value of the single logarithm is -11 ⇒ answer B
Explanation:
* Lets revise the rule of the logarithmic functions
# ㏒ a + ㏒ b = ㏒ ab
# ㏒ a - ㏒ b = ㏒ a/b
# ㏒ a^n = n ㏒ a
# ㏒ 1 = 0
* Now lets solve the problem
∵

- Change the single logarithm to an expression by change the
multiplication to addition and the division to subtraction
∵

∵

∵

∴ The single logarithm =

* Now lets substitute the values
∵

- Substitute the values into the expression
∴ The value = 5(3) + 2(2) - 6(5) = 15 + 4 - 30 = -11
* The value of the single logarithm is -11