{1 point} The manager of a large apartment complex knows from experience that 30 units will be occupied tithe rent is art: dollars per month. A market survey:r suggests that, on the average, one additional unit will remain vacant for each 5 dollar increase in rent. Similarly, one additional unit will be occupied for each 5 dollar decrease in rent. What rent should the manager charge to maximize revenue? [3 (1 point] The prot function for a computer companyr is given by 13(3) 2 .":2 + 36:: 29 where z is the number of units produced (in thousands} and the prot is in thousand of dollars. a} Determine how.r mantir (thousands oi) units must be produced to 1giield maximum prot. Determine the maximum protit. (thousands of) units = [3 maximum profit = [3 thousand dollars b} Determine how.r mantir units should be produced for a prot of at least 40 thousand. more than D (thousands of) units less than C] (thousands of) units