I AM SORRY BUT WHAT DO YOU MEAN BY ARRANGEMENT BECAUSE IT DONT MAKE SENCE
You wrote the equation wrong- he starts with 9 pencils so that's a constant and he sharpens 11 pencils for every minute. The equation would be 9+11x with x being the amount of minutes, which in this case is 7. So you just substitute and solve.
9+11x
9+11(7)
9+77
86
Hope this helps!
Midpoint formula

Let S denote the midpoint of R and T
Answer:
36 is the answer of this question
Answer:

Step-by-step explanation:
Given expression
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= 
= 
= 
