TIMED TEST!! A radio wave has a frequency of 106Hz and travels at a speed of 785m/s. What is the wavelength of the radio wave?

5.89 m

83,210 m

7.41 m

0.14 m

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

What is the length of an with endpoints a 3,2 and b 8,14

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.