Which expression below models this real world scenario the best? A company puts the same type of battery in each of its clocks. Machine Alpha uses 3000 batteries a day in the clocks it makes. Machine Delta uses 2500 batteries a day in the clocks it makes. If each battery costs b dollars, what is an expression the company can use to determine how much money they spend on batteries in a given day?

Question 7 options:

3000b+2500b


b+5500


500b


5000b