For f(x)=4x+1 and g(x)=x^2-5, find (g/f)(x)

4+(2+x) can you me solve this problem

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

How can i differentiate this equation?