Top 5 Sales tutors

Estrella is a wonderful teacher. She was helping me to improve fluency of my 3 minute sales pitch for my business. Estrella is very creative in finding various ways to develop my 3 minute sales pitch. I definitely recommend Estrella's services to anybody who would like to make significant progress in speaking English, and getting the confidence to speak in public.

We had Jaime tutor our sales team in Excel and he was was very patient, Not all people were born to can teach but Jaime was definitely born to teach. He is extremely knowledgeable in Excel and very thorough in his teaching. We will use him in the future and I would highly recommend Jaime.

ex: y = 2^[x^2] ... y' = 2^[x^2] * 2x * ln 2 ex: Integrate e^2x ... y = e^2x / 2 / ln e = 1/2 e^2x y'check = 1/2 e^2x * 2 * ln e = back to e^2x CHK :) REVENUE-COST-QUANTITY FUNCTIONS Marginal revenue MR[q] is the sales price of the NEXT item: a 'rise/run' SLOPE of revenue. Thus, INTEGRATE MR[q] to find TOTAL REVENUE -- area under the MR[q] curve: Revenue R[q] = integral of MR[q] Cost C[q] = integral of MC[q]