Given point a(-4,3) and point b (-1,1), what is the distance between points a and b on this corporate campus rounded to the nearest foot? 5 feet 2 feet 4 feet 8 feet

It should be around 4 feet.

B. 370

If you take 64 + 81 and then divide by 2 to find the average amount, you get 72.5.  So, he earns somewhere around $72.5 each day he works.  Then multiply that by 5 days and you get $362.5.  If you are just finding a reasonable estimation, answer b.$370 would be the closest to that amount.