What is a another name for 23 ten thousand

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?