The minute hand on an analog clock is 8 inches long. how far does the tip of the minute hand travel in 16 minutes

We know that
on an analog clock
60 minutes is equal to a circumference of 360°
so
360/60> 6°
that means 
1 minute is equal to > 6°
16 minutes> X
x=16*6> 96°

the length of a circumference=2*pi*r
for r=8 in

the length of a circumference=2*pi*8> 50.24 in

if 360° (full circle) has a length of> 50.24 in
  96°> x
x=96*50.24/360> x=13.40 in

the answer is
13.40 in

This first picture is showing a total stack of blocks measuring 18 2/3 tall.
The stack is divided into 7 blocks that are 2 2/3 tall.
--> Second answer from bottom.

The next problem is a picture of a board that is 11 7/8 long. It is divided into 5 sections measuring 2 3/8 long.
-->3rd answer

Last problem is a picture of a rope that is 16 7/8 long. It is cut into 9 pieces that are 1 7/8 long.
--> 3rd answer