Which group of values makes the expression 3x2y−2z undefined? a) x = –1; y = 0; z = 3 b) x = –1; y = 3; z = 0 c) x = 0; y = −1; z = 3 d) x = 0; y = 3; z = −1 e) x = –1; y = 2; z = 1

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

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?

Write an eqautoin of the line that passes through the give points -3,-2 and 2,-1