Answer:
total profit gained = 20%
Step-by-step explanation:
profit = SP - CP = 18 - 15 = 3 naira
total profit percentage =
- ( profit / CP ) × 100
- 3 / 15 × 100
- 20%
hence her total percentage gain was 20%
perpendicular means negative reciprocal so it would be -1/3
Answer:
option A: 120°
Step-by-step explanation:
