An electronics store sells an average of 117 home theater systems per month at a price of $213 each. When the store drops its price to $192, it sells 28 home theater systems more each month. At what price should the store sell the home theater systems to maximize its revenue?

What properties allow transformation to be used as a problem solving tool

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.