Answer:72wz+17z+9w
Step-by-step explanation:
You multiply them together them add to simplify them.
Answer:
n=-5
Step-by-step explanation:
Answer: Work done by both of them in k hours is

Explanation:
Since we have given that
Number of hours Mr. I does a job = x hours
Number of hours Mr. L does a job = y hours
Work done by Mr. I is given by

Work done by Mr. L is given by

Work done if they do together is given by

Work done if they work together for k hours is given by

Hence, work done by both of them in k hours is
