For a certain company, the relationship between revenue R (in billions of dollars) and the number of full-time employees n (in thousands) can be approximated by 3000R- = n (a) Would - be expected to be positive, negative or zero? Why? (b) Find What are the units? (c) Find - up when R= 131 and n = 328, and interpret the answer. (a) Would - be expected to be positive, negative or zero? Why? The value dR is expected to be because if revenue grows it would be expected that employees would be hired compared to last time