The equation of any line is:

m is slope.
We just need to put inside of equation x=(-3) and y=5:


It follows that equation of a line is:
I think 50 oz less
hope it helps
Do you mean the following:
log(5^(4/7))=around 0.4
log(5)^(4/7)=around 0.815
log(5^4)/7= same thing as top one
log((5^4)/7)=around 1.95
HCF= highest common factor
LCM= least common multiple