Let f(x) = 6x-5 and g(x) = 2x-1. Find f • g

I thought the answer was 12x^3 - 6x^2 - 10x + 5 but my computer says it's wrong

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

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Which table shows a proportional relationship between miles traveled and gas used?