Answer:
Step-by-step explanation:
✔️It’s a null set
Let a and c represent, respectively, the price of an adult and a child ticket. We know that

Multiply the first equation by 3 and the second equation by 2 to get

Subtract the two equations to have

Plug this value in the first equation to get

Answer:
c
Step-by-step explanation:
because on the chart is says 19% under burgers for teachers.
Tell me if it is right.
Answer:
A
Step-by-step explanation:
since 36=6² and the other option is not square of integer
Answer:
C
Step-by-step explanation:
Hope this is right, this is what I got.