A low-frequency radio wave has a frequency of 250,000Hz and has a speed of 6m/s.. What is the wavelength of this radio wave?

Three coins are flipped. what is the probability that there will be at least two tails?

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?