Please help!!! Whoever gets the correct answer first gets brainley-est!

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)

X+y=-4 x-y=2 use elimination with adding and subtraction

Jim had 15 minutes to do 5 laps around his school what would his time be