Answer:take away 6 inches
Yes and I said I think it’s a good idea for me it’s not like that anymore bc it’s not funny anymore bc it’s not a good idea to do it so
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!