If 9x + 7y = -1 and - 4x - 8y = 2 are true equations, what would be the value of 13x + 15y?

What is the perimeter of square abcd? units units 28 units 37 units

Do some research and find a city that has experienced population growth. determine its population on january 1st of a certain year. write an exponential function to represent the city’s population, y, based on the number of years that pass, x after a period of exponential growth. describe the variables and numbers that you used in your equation.

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =