540 because if you add 329 1/4 and 210 1/4 it’s 540. You add these together because you need to know the COMBINED distance between the dolphin and seagull.
Answer:
Wait u gave the same equation twice, do u mind checking back to it?
Step-by-step explanation:
Answer:
Average mean salary 
Step-by-step explanation:
We have been given year and respective salaries in each year.
1960 $4,995
1970 $8,626
1980 $15,970
1990 $31,367
2000 $41,807
2010 $55,202
Now we nee do to determine the average mean salary for the six decades, 1960 – 2010.
So we just need to add all those six salaries and divide that sum by 6 to find the average mean salary.
Average mean salary 
Average mean salary 
Average mean salary 
Hence final answer is approx:
Average mean salary 