Carlos teaches guitar lessons at guitar shack. he charged a one time registration fee of $10 and each lesson costs $20. he keeps all the money he collects. what is the rate of change?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

On average a herd of elephants travels 10 miles in 12 hours you can use that information to answer different questions drag each expression to show which is answers

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?