The frequency of musical note B4 us about 493.88 Hz.
what is the frequency of the note a perfect fifth below B4?

A.987.76 Hz
B.740.82 Hz
C.329.25 Hz
D.246.94 Hz

20 points!!

Can someone check if i did this correct. it’s number 4 if you’re wondering.

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your