The quadratic expression x^2+nx-12 can be factored as (x+a)(x+b), where n, a, and b are integers. fatima wrote that n could be equal to 7. omar wrote that n could be equal to -3.which student is correct ?

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.)