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

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

How do i multiply two digit numbers

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)