Answer:
Mean temperature for the first 8 days was 
Step-by-step explanation:
Mean = 

Best Regards!
The answer to this equation would be 7/20. Hope this helps! :D
~PutarPotato
Answer:
3
Step-by-step explanation:
36-27 = 9

The two angle measures are equal (which is the point of an angle bisector), so you have
y + 30 = 3y - 50
30 = 2y - 50 . . . . . . . . subtract y
80 = 2y . . . . . . . . . . . . add 50
40 = y . . . . . . . . . . . . . .divide by the coefficient of y
The value of y is 40.