For which situation could the integer −10 be used?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

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.)