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) = 0.07x - 3.5x + 172x; (0, 100] What production level will give the lowest average cost per wheel? x = (Type an integer or a decimal.)