(05.06) A bicycle manufacturing company makes a particular type of bike. Each child bike requires 4 hours to build and 4 hours to test. Each adult bike
requires 6 hours to build and 4 hours to test. With the number of workers, the company is able to have up to 120 hours of building time and
100 hours of testing time for a week. If c represents child bikes and a represents adult bikes, determine which system of inequality best
explains whether the company can build 20 child bikes and 6 adult bikes in the week. (2 points)