The easiest way is to do some simple division, where 500 is the distance & 20 is the duration.

The elevator is descending 25 ft/s.
Answer:
after 7 days the temperature would be 35 degrees less than the first day.
therefore, -35 would express the change in temp.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
3p + 2b = 31
2p + 4b = 30
A pizza costs $8. A bottle of lemonade costs $3.50
Answer:
the following number that is rational is
1 425/1000
1 85/200
1 17/50
Answer:
if there is a negative sign the smaller the better as negative 5 is more units to the left of 0 than negative 3