Jj joins a fresh food delivery service where he gets a box of fresh fruits delivered at home. the service costs 30$ to join, and each box costs 10$. let e represent the food expense related to this service and let b represent the number of boxes be purchased.

The second option

Step-by-step explanation:

If each box costs $10 to deliver, then the term for this would be 10B. Since there is a 30 fee to join, any amount of boxes you buy would be added by $30. So the equation looks like this if E is the total amount spent: E=10B+30.

Now that you have that equation, you would want to solve for B

E=10B+30

first I would subtract 30 on both sides

E-30=10B

then divide by 10 to isolate B

E-30/10=B

So if you flip it you get this

B=E-30/10

This answer fits for the second option

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square