Write a polynomial expression for the perimeter of a triangle whose sides have the following lengths. x+8, 3x^2+4x, x^2-3x+6

Ineed if you could explain and give me the answer you! this needs done

Evaluate the expression. (9 + 5)(3 + 2)0

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.