For what value of z would the following system of equations be true for all real integers?​

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

What is the solution for the system of equations below? y=3/4x-12 and y=-4x-31. a: (-4,-15). b: (-4,-12). c: (4,-9). d: (4,-47)

Hamburger heaven is having a lunch special where customers buy one -pound cheeseburger and get one free. if they set aside pounds of meat, how many -pound cheeseburgers can they make?