Hi can you please help me answer these step by step if you don't mind. I would greatly appreciate it.

Thanks a lot

1. A survey of a certain group of 45000 full-time workers indicates that the function S(e) = 340e - 4360e + 45000 represents the relationship between the number of years of education, e, that the worker has, and the worker's average annual salary, 5, in dollars, where e 2 7. (a] Determine the rate of change of salary with respect to education for each value of e. [APP-5] L e = 10 it. e = 12 ili. e- 16 i. e = 18 (b) What can you conclude, based on your answers from part (a)? [COMM-2] (c) At what level of education does the rate of change of salary equal $5000 per year of education? [APP- 3] 2. Given s() = 3t*(20 - 1)(-+3 + 5: + 1), determine v(t) and a (t). [APP-5] 3. An ice cream company estimates that the cost, C, in dollars of producing x tubs of ice cream is ((x) = 0.0001x# + 1.75x + 4100. The revenue from selling x tubs of ice cream is R(x) = 6.50x. [APP- 2, 4] (a) Determine the marginal cost of producing 4000 tubs of ice cream. [b) Determine marginal profit from selling 4000 tubs of ice cream. 4. In the graph shown, identify which curve or line represents each function: y = s(t), y = v(f), and y = a(t). Justify your choice. [COMM- 5]