(40 POINTS) Let x = price of a standard ticket, y = price of a matinee ticket, and z = price of a senior ticket. 150x + 80y + 12z = 2,466
380x + 95y + 48z = 5,419
210x + 130y + 60z = 3,960

220x + 225y = 4,445
540x + 270y = 8,370 → y = −2x + 31

x = 11

The solutions to the system mean:

A.) Eleven tickets were sold on Friday. Nine tickets were sold on Saturday. Eight tickets were sold on Sunday.

B.) Eleven standard tickets were sold. Nine matinee tickets were sold. Eight senior tickets were sold.

C.) The price of a standard ticket is $11. The price of a matinee ticket is $9. The price of a senior ticket is $8.

C. The price of a standard ticket is $11. The price of a matinee ticket is $9. The price of a senior ticket is $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 c or d   take a lucky guess my dude