Please need an answer asap

Use the function shown below to model the revenue (in millions of dollars) from the cell phone industry in a reach its maximum? particular country, where x = 2 corresponds to the year 2002. According to this model, in what year does revenue f(x) = 52.44(47.4x -143.3)e- 1.5x The revenue reaches its maximum in the year (Type a whole number.) The daily cost of producing x high performance wheels for racing is given by the following function, where no more than 100 wheels can be produced each day. What production level will give the lowest average cost per wheel? What is the minimum average cost? C(x) = 0.03x - 3.0x + 176x; (0,100] What production level will give the lowest average cost per wheel? x= (Type an integer or a decimal.)