To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out?
3x - y = 3
-2x + 2y = 6

The graph below could be the graph of which exponential function?

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review