A company estimates that it will sell N(x) units of a product after spending $x thousand on advertising, as given by N(x)equalsnegative 0.25 x Superscript 4 Baseline plus 22 x cubed minus 472.5 x squared plus 76 comma 000, where 21 less than or equalsxless than or equal 45. When is the rate of change of sales increasing and when is it decreasing

yes, i heard the "tea" with james charles and a few other beauty gurus. i believe charles is in the wrong and i believe tati the most. tati didn't lie about james charles but may have exaggerated because he never sexually assaulted anyone. jeffery star is a really good friend to all and out anyone that needs it, until you mess with one of his "sisters"! james will never rise over jeffery or tati, he's way to sensitive and dramatic to rise about them. i think all three of them will make up and be friends again because they always get over it.

i hope this with your