Answer:
5,806
Explanation:
Because they got there 5,000 packets they subtracted 1,779 packets
5,000-1,779=3,221
Next remember they get 5,000 packets each week so then you add 5,000 to 3,221
3,221+5,000=8,221
next 2,415 packets were used so subtract 8,221 bu 2,415
8,221-2,415=5,806 so there's your answer
Have a good day