Ineed to know what was the number of sharpened pencils at 7: 07 am?

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!

the correct answer to your question is a. 4^4

good luck my friend!

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step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.