Answer:

Step-by-step explanation:
Given


Required
Determine the difference between the points
The difference is calculated as follows:



Answer 6 hours
Reason
7x + 9.50 = 55
-9.50. -9.50 subtract from both sides
_____________
7x = 45.50
Divide both sides by 7 to isolate x
X = 6.5
So he can rent for 6 hours (the .5 would be charged as a full hour per the problem)
Answer:
285 Words
Step-by-step explanation:
If in 1 minute he can type 30 words
, then in 9.5 min he can type 30 x 9.5 = 285.0 = 285
So, Nick can type 285 words in 9.5 minutes.
Hope this Helps!