If x, y, and z are whole numbers greater than 1, and if xyz2 = 504, what is the value of x +y - z?

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

Which of the following graphs represents the function f(x) = 2^x

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p. mc) knowing that it is going to rain tomorrow, and going to bed before 9 p. md) knowing that you have a test in school tomorrow, and studying thw night before