Evaluate the expression 2x + 3 + (x*x), for x=4
please help!

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

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

What is the binomial expansion of (2x-3)^5