Answer:
5000+100=5100 it is short form
The formula of a slope:

We have the points (2, 5) and (4, 10). Substitute:

This means that 2.5mm of rain falls every hour
If starting out, there are 100 marbles and Zoe pulls out a 5 and doesn't replace it, then there are 99 marbles left to choose from. So, there are 9 digits 1-10 (not including #5) making the proportion you have left 9/99 which simplifies to 1/11
False
The horizontal translation is from left to right which affects the x-value while the vertical translation is up to down which affects the y-value
Good luck!