A company's unit cost for producing qqq units is a minimum when q=80q=80q, equals, 80 units are produced. The unit cost increases \$7$7dollar sign, 7 for every 101010 units more or less than 808080 produced. If the minimum unit cost is \$5$5dollar sign, 5, which of the following equations can be used to find the number of units, qqq, for which the unit cost is \$8.25$8.25dollar sign, 8, point, 25? Choose 1 answer