Answer: its actually a
Step-by-step explanation:
A = -5 ( -9 / 3 = -3; -3 -2 =-5)
B= - 2
C = -2
D = 0
Answer: Annette will take 6 hours to do the entire job alone.
Step-by-step explanation:
Given: Time taken by Kelly to do
of job = 2 hours
i.e. Time for complete job done alone by Kelly =
Rest of work =
of the job
of the complete job done by both Kelly and Annette in 3 hours
Time would be taken by then to do entire job together = 
Let t be the time taken by Annette to do job alone.
Then, as per situation

hence, Annette will take 6 hours to do the entire job alone.
1200/8 = x/3
150 = x/3
150 * 3 = x
450 = x
450 calories