If I where to spend between $100 and $150 on groceries every week, what type of expense would groceries be? (Just double checking)

How many $20 bills do you need to have to make $280

Three times the sum of a number and seven is negative thirty-six. what is the number?

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.)