60 pens in 25 boxes
12 pens in y boxes

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

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

Anyone know? will mark brainliest if you're correct!