Answer:
4 because digits are counted before decimal.
Answer: 30 days
<u>Step-by-step explanation:</u>
Working together, E & B get 1/45 of the job done per day
Working alone, C gets 1/x of the job done per day
Working together, E, B, & C get 1/18 of the job done per day.

Answer:
0.0025
Step-by-step explanation:
:)
Answer:
0.9
Step-by-step explanation: