Amobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. tom has already used 230 minutes this month. which in e quality can be used to determine how many more minutes tom can use this month without going over the 500 minute limit?

Put the equation in slope intercept form by solving for y

Why is causation so much more difficult to prove than correlation?

The library sells 376 books at its annual used-book sale. the sale takes in a total of $2119. children's books cost $4, and adult books cost $7. let x = number of children's books sold, and let y = the number of adult books sold. which system of equations can the librarians use to model this situation?