Answer:
James must attain $139.5 for his game system.
Step-by-step explanation:
When dealing with percentages, keep in mind that a full percentile is 100% which equivalent to 1 whole. So to find your answer, start with moving the decimal in the percentage to the left by 2. Meaning that 45% will be translated to .45. Multiply $310 by .45 and your answer will come out to be $139.50.
1) Slide decimal 2 places left in percentage (45% = .45)
2) Multiply new decimal by total (310 x .45)
3) All done! ($139.50)