I can’t quite figure out where to even start with this any chance someone could give me an answer so I can work through it

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,