Find the predicted total sales in 2017 and find the total

Question

Question 1

Given f(x) = 2/x² + 5x + 1 and g(x) = 3x - 7, Find the following:

a. (g + f)(4)

b. (g/f)(-3)

Question 2:

Which of the following are factors of - x³ - 5x² - 3x + 9

a. (x - 1) b. (x - 3) c. (x + 1) d. (x + 3)

Please show all relevant working.

Question 3:

Suppose the total sales of a company are given by s(x) = 250x + 8000, where x is measured in years and x = 0 corresponds to the year 2005.

i. Find the total sales when x = 0.

ii. Find the total sales when x = 3.

iii. Find the predicted total sales in 2017, assuming that the trend continues.