Fast factor the expression. 4d + 12 enter your answers in the boxes to complete the factored expression. (d + )

Solve for x i'll try to attach the files bc it's not letting me for some reason

At which value in the domain does f(x) =0?

Sara needs to take a taxi to get to the movies the taxi charges $4.00 for the first mile and then $2.75 for each mile after that if the total charge is $20.50 then how far was sara’s taxi ride to the movie