Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah, a total of 10 people took the trip. She was able to purchase coach tickets for $320 and first-class tickets for $960. She used her total budget for airfare for the trip, which was $4480. How many first-class tickets did she buy? How many coach tickets did she buy?

she bought 8 coach, 2 first-class

Step-by-step explanation:

let x = number of coach tickets

equation I used:  320x + 960(10 - x) = 4480

                            320x + 9600 - 960x = 4480

                            -640x = -5120

                             x = 8

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

its kind of blurry. can you put a clearer pic?

step-by-step explanation: