Answer:
20
Step-by-step explanation:

multiply both sides by 35

divide both sides by 35

Answer:
43 46 34 98 78 67
Step-by-step explanation:
Convert the mixed number 2 1/4 into an improper fraction: 9/4.
Then multiply this 9/4 by 3: 27/4, or 6 3/4.
4, 8, 12, 16 I can’t see your table but I think these are the answers. :)
I'm terrible at math, so I'm sorry if I'm totally wrong, but I'm assuming you just take the average:
20+28=48m
48/2=24m
On average, it may take them 24m if they work together.