= is parallel lines because they are in line with each other. Hope I helped :D
Answer:
1. 
2. 
3. 
Step-by-step explanation:

Write in exponential form
Using the law of logarithm which says if
then

By comparison;
A = 16; b = 2 and x = 4
The expression
becomes


Write in exponential form
Applying the same law as used in (1) above;
A = 2; b = 16 and 
The expression
becomes

Write in logarithm form
Using the law of logarithm which says if
then

By comparison;
b = 2; x = z and A = y
The expression
becomes

Eight hundred seven million, five hundred thirty thousand, twelve
Using theorem about secant segments we can write,
AB*AH=AG*AC
AC=4,
CG=6
AG=AC+CG=4+6=10
AH=3
AB= AH+HB=AH+x=3+x
(3+x)*3=10*4
9+3x=40
3x=40-9
3x=31
x=31/3≈10.3
HB≈10.3
EG=HB/2 (as radius and diameter)
EG=10.3/2≈5.2
The answer for this question is 37/40