PLEASE HELP WILL GIVE BRAINLIEST

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

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?