What is the mean of this data set? (8,3,4)

A) 15
B) 7.5
C) 5

Pls i’m dumb as heck i’ll give y’all so many points if that encourages you

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price