Apromotional deal for long distance phone service charges $15 basic fee plus $0.05 per minute for all calls. if joe's phone bill was $67 under this promotional deal , how much minutes of phone calls did he make?

What could explain what happened when the time was equal to 120 minutes

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Find the equation using the point (4,8)