Gabby bought a backpack and 3 notebooks for $40.66. What is the total price, including an 8% sales tax

What is the vertex form of f(x) = x2 + 6x + 3

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

What are the solutions to the equation 4x2+3x=24-x