Answer: The selling price was at first $776 but then the store advertised a 30% markdown on the system. Find the current sale price.
Step-by-step explanation:
$776 - (30% of $776) = $ x :: current sale price
776 - 776 * 0.3 = x
776 * (1 - 0.3) = x
776 * 0.7 = 543.20
Current sale price for the computer system is $543.20.