Answer:
20 treat.
Explanation:
Given: Operation cost= $20 per week.
Cost to produce each treat= $0.50
Selling price= $1.50
Lets assume the total number of treat in a week be "x".
Cost of production =
![Fixed\ cost+ Variable\ cost](https://img.qammunity.org/2021/formulas/mathematics/middle-school/3onjfuzlgtz1mz5wo886he6v6ashrxyh8z.png)
⇒ Cost of production=
![\$ 20+ \$ 0.50 * x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/bovm9i23hlgqyu8gkk8qqfjbnbj2rcrs3r.png)
∴ Total cost of production per week is
![\$ 20+ \$ 0.50x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/mi76pyvi4s3sw2cd9k6ewymiudnz3abgii.png)
Total selling price=
![selling\ price\ of\ each\ treat * \ total\ number\ of\ treat\ per\ week](https://img.qammunity.org/2021/formulas/mathematics/middle-school/9t2e9wnn5mlz7jt6zp7rs8xc4q2vfirmpk.png)
⇒ Total selling price=
![\$ 1.50* x= \$ 1.50x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/s25j57zkqip5mok2ezp92ww866ssysibv9.png)
Break even is a point of business where cost of production is equal to total selling price.
∴ Forming an equation to have CP= SP ( Break even)
=
![\$ 1.50x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/93tchhd5k7gzt6q5hcrhd8wsln6h86fnfj.png)
Subtracting both side by 0.50x
⇒
![20= 1.50x-0.5x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/w09ev3yaa8t3kepap8q9il9ztvz3gzeswg.png)
⇒
![20= 1x](https://img.qammunity.org/2021/formulas/mathematics/middle-school/rzrf6p3phfmtmtlhwd5s6lj52xltp12sri.png)
∴ x= 20
Hence, Nick need to sell 20 treat per week to break even the business.