Answer:
x=2.4650
Step-by-step explanation:
I assume that you mean 
so let s use the ln() function

so x = ln(15)/ln(3)
x = 2.4650
Answer:
A
Step-by-step explanation:
≈3.14
3x3.14=9.42
9.42>9
Answer:
115°
Step-by-step explanation:
Supplementary angles equal 180.
180-65=115°
Answer: d = 11/2 or 5 1/2
Step-by-step explanation:
2d - 6 = 5
+ 6 + 6
2d = 11
/2 /2
d = 11/2 or 5 1/2