Solution:
Given that a 27-inch television set is advertised for $650 or $58 per month for 12 months on credit.
This implies that payment can be made at once by paying $650 or a monthly payment of $58 for 12 months.
A) The mathematical operations performed to find out how much a customer saves by paying cash instead of buying on credit include:
![Multiplication\text{ and subtraction}](https://img.qammunity.org/2023/formulas/mathematics/college/emrgg9mvr0wvbqh8qp06pf8niryo8b32qw.png)
B) Amount of the savings.
The amount saved is evaluated as
![\begin{gathered} amount\text{ saved = \lparen}\$58*12\text{ months\rparen-\$ 650} \\ =\$(696-650) \\ \Rightarrow amount\text{ saved =\$ 46} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/t82i1ag93ep16qqh0y60mgpk8x0h82g79c.png)