Aprofessional baseball team averaged 3 fans for each of its 81 home games. what is the order of magnitude of the total absence

We just started the introduction into circles and i have no idea how to do this.

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^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.)