The sales tax on a piece of furniture that cost $450 was $28.13.what was the percent sales tax.

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

Solve: 3x+y=6 4x-2y=18 show all work !

Ill mark the brainliest if you me with the these three questions 7,8,9