PL HELP ASAP The cost in dollars of producing x units of a particular brand of notebook is C(x) = x2 – 400.

a. Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 102. Include units in your answer.
b. Find the instantaneous rate of change of C with respect to x when x = 100. Include units in your answer.

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.