X 12 18 22 26 Y 1.5 2.25 2.75 3.25

Select all true statements about the table above.

A. The table shows a proportional relationship.

B. When x is 20, y is 2.55

C. All the ratios y/x for related pairs of x and y are equivalent to 8.

D. The unit rate of y/x for related pairs of x and y is 1/8

E. If the table continued, when x is 30, y would be 3.75

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?