Question 1094192
Given that:
.
S.P = $420 = 3C.P + $30
.
Where S.P is the selling price and C.P is the cost price.
.
3C.P = $420 - $30
.
3C.P = $390
.
C.P = $390/3
.
C.P = $130
.
.
.
Your friend,
Francis.