I want points!!!!!!!!!!!!!!!!
Answer:
The complex numbers have opposite real numbers.
Profit = revenue (income) - expenses
600 = 120x - 300
600 + 300 = 120x
900 = 120x
900/120 = x
7.50 = x ....this is how much 1 kg costs
so to cover her weekly expenses of 300, she would have to sell :
300/7.5 = 40 kg of cumin <===
I don't even know sorry bud