The circumference is about 12. This would been a bit easier if I knew the diameter.
$11=2 hrs
2hrs=$11
+2(4hrs)=$22
+2(6hrs)=$33 hrs
so 6 hrs or 7 hours and some
minutes left
55 % of the circle has been shaded. 1/5 is equal to 20% and 1/4 is equal to 25%. If you add 20 to 25 you get 45% meaning 45% is not shaded. In conclusion, 55% of the circle has been shaded.
Answer: = 2
/3
Step-by-step explanation: the explaination was too long but heres the answer ^

Answer is A. The mean increases by 40.
Hope this helps. - M