The percentage of students voted for colour crimson
=

hope it helps!
Answer:
what's the question that you need answered?
Step-by-step explanation:
?
Arc length from A to C (red line) is the given inside angle times 2, so AC = 50*2 = 100 degrees.
A full circle is 360 degrees, so arc ABC (blue line) would be 360 - 100 = 260 degrees.
The answer is D.
“a” would equal 7!! hope this helps :)