okay i know this is like the second time I've asked for help on a question in a row but I really need help so if u know how to do this PLEASE HELP SHAWTY 3

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

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)