Casey was the first customer to receive both a free cookie and a free muffin. what number customer was casey? show or explain how you got your answer.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

There are 3232 forwards and 8080 guards in leo's basketball league. leo must include all players on a team and wants each team to have the same number of forwards and the same number of guards. if leo creates the greatest number of teams possible, how many guards will be on each team?