an investment declines in value by 6% each month. By what percentage does its value decline in a year?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

If you could answer these your a life saver