A cell phone company estimates that by charging x dollars each for a certain cell phone, they can sell 8-x cell phones per day. Use the quadratic function to find the revenue when the selling price of each cell phone is x. Find the selling price that will give them the maximum revenue (in dollars) and then find the amount of the maximum revenue (in dollars)

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Which expression is rational? 6. , square root two, square root 14, square root 49

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64