Which of the following is equivalent to the expression? Show work. 4x + 3(2x - 1) - 4x
A 6x - 3
B 6x + 3
C 14x - 3
D 14x + 3

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

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?