Answer:
Step-by-step explanation:
The lines in between the numbers are called absolute value bars. Whenever you see numbers that have absolute value bars, know that the numbers become positive.
Therefore,
|-15| = 15
|-7| = 7
Now we just add,
15+7=22
Final answer = 22
Factor out the coefficient of the variable 2/3 j - 2/9
Answer
2/3j-2/9 = 2/3j-2/3*1/3 = 2/3(j-1/3)
I think you'll have to divide 35 by 7 to get the number of hours.
35/7 = 5
So 35 people will take 5 hours.
Hope i m right :)