The average speed will be:
Total distance travelled divided by time taken
Total distance (in metres)= 80+125+45=250
Total time (minutes) =10
250/10
=25
Thus Mary's average speed is 25 metres per minute.
X=15! hope this helps! Also please look at my questions about the cannon ball!!! need help!
The type of cell that does NOT use cell division to replicate is the reproductive.
If I'm wrong then, well.. at least i tried.