Aparent died and left an estate to four children. one inherited 1/2 the second inherited 1/8 and the third inherited 1/4. how much did the fourth inherit?

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.)