Alexandra has a stand in the marketplace where she sells her cumin for 7.20 per kilogram. if she sells 90 kilograms of cumin her weekly net profit is 414$. what are alexandra's weekly expenses?

$234

Step-by-step explanation:

First we need to define profits. Profits are Income minus Expenses:

P = I - E

We know profits are $414, so:

414 = I - E

We also can calculate income, as it is equal to price by the sales:

I = p*Q

Here she sold 90 kgs at $7.20 b kg. So:

I = p*Q = 7.20 * 90 = 648

So, replacing in profits equation:

414 = I - E

414 = 648 - E

If we sum E in both sides:

414 + E = 648 - E + E = 648

414 + E = 648

Now, subtracting 414 in both sides:

414 + E - 414 = 648 - 414

E = 234

So, her expenses are $234

Hope this helps

Step-by-step explanation:

If 6 planters= $18   then 16 planters= 16x  18 divided by 6 =$48