I think its he didnt eliminate the same variables
Manny can assemble a computer in 50 minutes. That means, in a minute Manny does

job.
Lucy can assemble a computer in 45 minutes. That means, in a minute Lucy does

job.
If they are working together, in a minute they will do:



In a minute they will do

job
To finish the job they will do it in
minutes or about 24 minutes.
Answer:
118-40=78
p either is less tham or equal to 78
the answer is c
Answer:
2nd option on the top right
Step-by-step explanation: