Find the derivative of f(x) = 12x2 + 8x at x = 9. 256 -243 288 224 i answer questions for you but no one ever answers my questions. you're all are so ungrateful. i've been trying to find the answer for several hours and nothing. yes i did try to teach myself but i just cant understand it.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Which of the functions below could have created this graph?

Someone answer this asap for 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.