Help me plz which formula should I use??​

Lorenzo ate 2/5 of his bag of almonds. his 4 friends ate equal shares of the remaining bag of almonds?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b