The base of the log becomes the base of the exponent, what the log is equal to becomes the exponent of the base, and the other number (or variable in this case) becomes what the exponent is equal to. Hope this helped!
Answer:
The answer would be 5√16/2, in decimal form it would
0.87055057....
Scalene no angles or sides are the same therefor a scalene triangle. Obtuse Scalene if you want to be precise. <span />
Ok, so 8. is adjacent because it makes up a 90 angle and number 13. is vertical because it has 2 lines going through each other.