P = R - E 600 = 120x - 300 The value of x from the equation is 7.5. The answer therefore for the first question is $7.5. Then, the number of kilogram of cumin she needs to sell to cover the expenses is $300/$7.5 and that is equal to 40. I tried my best hope this helps
The equation can be rewritten as: Log(x*(x+5))=Log=(6x+12) so x(x+5)=6x+12 x^2+5x=6x+12 x^2-x-12=0 (x+3)(x-4)=0 x=-3 or x=4 x cannot be negative here, so x=4 is the only solution