Question

a camera droppeed from a boat descends 9 meters every minute. What will be the change in location of the camera afterb5 minutes?

Answer 1

The first thing to do is to turn this into an equation: 
If minutes= m and distance = d
d = 9m

Since you want to know how far the camera goes after 5 minutes: 
m = 5
d = 9 X 5 
d = 45

After 5 minutes, the camera has dropped 45 meters.

Answer 2

Well, if it descends 9 meters every minute, you would multiply 9 by the number of minutes in question. Since you want to know its location after 5 minutes, you would multiply 9 by 5.

9 x 5 = 45 so 45 meters after 5 minutes

Hope this helps :)