If an electromagnetic wave has a frequency of 8 x 10^14 Hz, what is its
wavelength? Use - The speed of light is 3 x 10^8 m/s.

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?