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!!

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

You use math in day-to-day routines when grocery shopping, going to the bank or mall, and while cooking. how do you imagine you will use math in your healthcare career?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.