Ahiker in africa discovers a skull that contains 51% of its original amount of c-14. find the of the scull to the nearest year

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

Equation for the calculation double 2 and then add 5

Which is f(5) for the function –2x2 + 2x - 3?