Fractions on a line plot iready

Which value of c would make he following expression completely factored? 8x+cy

What is the value of f(x) = 2.2 for f(-2)?

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.)