-3.
It's the same as normal division unless they have different signs, then it's negative.
Answer:
light takes 3×10^5 second s
so total seconds taken by the light =780×10^6/3×10^5
1 min=60sec
no. of min=2600/60
=43333min
11 x c= s
you have 11 students in one class. you multiple the unknown number of classes(c). to get the total amount of students( s)
Use this app take a picture of it
