What is the percent decrease from 345 to 300 rounded to the nearest percent

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)

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

How do i find the missing angle measure in a polygon