Answer:
B
Step-by-step explanation:
They are all cousins.
1.8?
Decimal Form - 1.6667
45 student tickets and 30 adult tickets
You can check your work by plugging both answers into both of the original equations. :)
-7 3=-4
-5 1=-4
-3 -1=-4
-7 and 3 make -4. -5 and 1 make -4. -3 and -1 make -4.