A certain electronics manufacturer found that the average cost C to produce x game systems can be found using the equation
C = 0.03x² - 8x + 700.
What is the minimum average cost per system and how
many game systems should be built in order to acheive that minimum?

The minimum average cost is:

The number of game systems that should be build to acheive the minimum is:

**Answer both to the nearest whole number.