Help me PLEASE This is confusing and im getting frustrated. Ill brainliest the best answer with a good explanation so I can have a better understanding of the equation.

Nina would have total expenses and sales $156 after selling 4 necklaces.

Step-by-step explanation:

Let x represent the amount of necklaces made and sold.

The initial cost was $140 and it costs $4 to produce one necklace. Hence, the total cost after producing x necklaces can be represented as:

Each necklace sells for $39. Hence, the total profit after selling x necklaces can be represented as:

To break even, the total cost and profit must be equivalent. Hence:

Solve for x:

Hence, the break even, Nina would need to sell four necklaces.

And the total expenses/profit would be:

In conclusion, Nina would have total expenses and sales $156 after selling 4 necklaces.

Step-by-step explanation:

We know that:

Work:

Now, let's substitute the value of x into any equation to find the total expenses and sales.

Hence, the total expenses is $156 is the total necklaces sold is 4.

Hoped this helped.

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2