From the statement, we know that a microwave oven:
• has a list price of $125.50,
• and a chain discount of 40/20.
The net price of the microwave with the chain discount is:
[tex]NP=LP\cdot(1-d_1)\cdot(1-d_2)\text{.}[/tex]Where:
• NP is the net price,
,• LP is the list price,
,• d_1 is the first discount in decimals,
,• d_2 is the second discount in decimals.
In this case, we have:
• LP = $125.50,
,• d_1 = 40/100 = 0.4,
,• d_2 = 20/100 = 0.2.
Replacing these data in the formula above, we get:
[tex]NP=\text{ \$125.50 }\cdot(1-0.4)\cdot(1-0.2)=\text{ \$125.50 }\cdot0.6\cdot0.8=\text{ \$60.24.}[/tex]Answer
The net price is $60.24.