Answer:
Its average speed is 7 units per second.
Step-by-step explanation:
25-4= 21
Distance is 21.
Divide the 
, which will be 
. 21/3 is 7.
Its average speed is 7 units per second.
The initial amount, (original starting amount) is 18,000.
Answer: 7 Boxes
Step-by-step explanation:
There are 4 classrooms and 29 boxes of markers. So, you would divide 29 by 4 which is 7.25. Then, you need to round it because you don't have a quarter of a box. So, each classroom will get 7 boxes.
I hope that helps!
Sqrt(49)*sqrt (-1) -4 = 7i-4
