During a 10-day period, the balance of marta's checking account dropped it $290.what a division expression to represent the change then determine the average daily change in account balance during that 10 day.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students