Help please! Answer only if you know this, thanks.

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

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab