Answer: 
Step-by-step explanation:
Logarithms are in the format
while exponential form is in the format 
So we can transfer a,b, and c from the log form to the exponential form

Answer:
Step-by-step explanation:
Answer:
APC is 90 degrees
Step-by-step explanation:
When lines intersect and are perpendicular. that means the angle of intersection is 90 degrees.
APC is 90 degrees